@articleLierke_Hemsel_2008, title=Local Ultrasonic Hyperthermia and Thermo-ablation: A Description and Theoretical Evaluation of Two Alternative Concepts for the Heat Therapy of Tumours, volume=94, DOI=10.3813/AAA.918044, number=3, journal=Acta Acustica united with Acustica, author=Lierke, Ernst-Günter and Hemsel, Tobias, year=2008, pages=369–381 

@inproceedingsMüller_Schiedeck_Hemsel_2008, title=Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen, booktitle=2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz, author=Müller, Thomas and Schiedeck, Florian and Hemsel, Tobias, year=2008 

@articleMracek_Hemsel_Sattel_Vasiljev_Wallaschek_2008, title=Driving concepts for bundled ultrasonic linear motors, volume=20, DOI=10.1007/s10832-007-9123-5, number=3–4, journal=Journal of Electroceramics, publisher=Springer US, author=Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Vasiljev, Piotr and Wallaschek, Jörg, year=2008, pages=153–158 

@inproceedingsSondermann-Wölke_Geisler_Müler_Trächtler_Böcker_2008, place=New York, title=The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems, booktitle=ASME 2008 -- International Design Engineering Technical Conferences \'26; Computers and Information in Engineering Conference (IDETC/CIE), author=Sondermann-Wölke, Christoph and Geisler, Jens and Müler, Thomas and Trächtler, Ansgar and Böcker, Joachim, year=2008 

@articleStroop_Uribe_Martinez_Brökelmann_Hemsel_Wallaschek_2008, title=Tactile tissue characterisation by piezoelectric systems, volume=20, DOI=10.1007/s10832-007-9183-6, number=3–4, journal=Journal of Electroceramics, publisher=Springer US, author=Stroop, Ralf and Uribe, David Oliva and Martinez, Melisa Orta and Brökelmann, Michael and Hemsel, Tobias and Wallaschek, Jörg, year=2008, pages=237–241 

@articleTwiefel_Potthast_Mracek_Hemsel_Sattel_Wallaschek_2008, title=Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes, volume=20, DOI=10.1007/s10832-007-9169-4, number=3–4, journal=Journal of Electroceramics, publisher=Springer US, author=Twiefel, Jens and Potthast, Christian and Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Wallaschek, Jörg, year=2008, pages=209–214 

@inproceedingsUribe_Stroop_Hemsel_Wallaschek_2008, title=Development of a biomedical tissue differentiation system using piezoelectric actuators, DOI=10.1109/FREQ.2008.4622963, booktitle=Frequency Control Symposium, 2008 IEEE International, author=Uribe, David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg, year=2008, pages=91–94 

@inproceedingsTonchev_Hirschberg_Sextro_Major_Neges_2007, place=Bad Neuenahr, series=12, title=Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe, number=657, booktitle=27. Internationales Mju-Symposium/Bremsen-Fachtagung, publisher=VDI Verlag GmbH, author=Tonchev, Anton and Hirschberg, Wolfgang and Sextro, Walter and Major, Zoltan and Neges, Josef, year=2007, pages=29–49, collection=12 

@inproceedingsTonchev_Hirschberg_Sextro_Major_Neges_2007, place=Bad Neuenahr, series=12, title=Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc, number=657, booktitle=27. Internationales Mju-Symposium/Bremsen-Fachtagung, publisher=VDI Verlag GmbH, author=Tonchev, Anton and Hirschberg, Wolfgang and Sextro, Walter and Major, Zoltan and Neges, Josef, year=2007, pages=144–163, collection=12 

@inproceedingsCamarena Gandia_Hemsel_Espinosa_Twiefel_Ardid_Martinez-Mora_Gandia_2007, title=Non-destructive ultrasonic test of orange dehydration, booktitle=Proceedings of 19th international congress on Acoustics, Madrid, author=Camarena Gandia, Francisco and Hemsel, Tobias and Espinosa, Victor and Twiefel, Jens and Ardid, Miquel and Martinez-Mora, Joan and Gandia, Joan Babtiste, year=2007 

@inproceedingsGenzo_Sextro_Panning_2007, place=Düsseldorf, title=Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten, volume=2022, booktitle=VDI-Berichte, publisher=VDI Verlag GmbH, author=Genzo, Alexander and Sextro, Walter and Panning, Lars, year=2007, pages=147–161 

@articleHemsel_Stroop_Oliva Uribe_Wallaschek_2007, title=Resonant vibrating sensors for tactile tissue differentiation, volume=308, DOI=10.1016/j.jsv.2007.03.063, journal=Journal of Sound and Vibration, author=Hemsel, Tobias and Stroop, Ralf and Oliva Uribe, David and Wallaschek, Jörg, year=2007, pages=441–446 

@inproceedingsLierke_Hemsel_2007, title=Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation, booktitle=Proceedings of 19th international congress on Acoustics, Madrid, author=Lierke, Ernst-Günter and Hemsel, Tobias, year=2007 

@articleShigematsu _Morita_Hemsel_2007, title=Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate, volume=28, journal=Proceedings of Symposium on Ultrasonic Electronics, author=Shigematsu , Takashi and Morita, Takeshi and Hemsel, Tobias, year=2007, pages=439–440 

@articleSzwedowicz_Visser_Sextro_Masserey_2007, title=On Nonlinear Forced Vibration of Shrouded Turbine Blades, volume=130, number=1, journal=Journal of Turbomachinery, author=Szwedowicz, J and Visser, R and Sextro, Walter and Masserey, P. A, year=2007, pages=011002–011002 

@inproceedingsBecker_Wedman_Hemsel_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Design and Construction of a 3D-Scanning-Laservibrometer, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Becker, C and Wedman, S and Hemsel, Tobias, year=2006, pages=481, collection=HNI Verlagsschriftenreihe 

@articleFu_Hemsel_Wallaschek_2006, title=Piezoelectric transducer design via multiobjective optimization, volume=44, Supplement, DOI=10.1016/j.ultras.2006.05.087, journal=Ultrasonics, author=Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg, year=2006, pages=e747–e752 

@inproceedingsFu_Hemsel_Wallaschek_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Multiobjective optimization of piezoelectric transducers using evolutionary algorithms, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg, year=2006, pages=223–228, collection=HNI Verlagsschriftenreihe 

@inproceedingsGenzo_Sextro_2006, title=Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts, booktitle=Proceedings of ISMA - International conference on noise and vibration engineering, author=Genzo, Alexander and Sextro, Walter, year=2006, pages=51–52 

@inbookGutzeit_Sextro_Kröger_2006, series=Lecture Notes in Applied and Computational Mechanics, title=Unsteady rolling contact of rubber wheels, volume=27, DOI=10.1007/3-540-31761-9_29, booktitle=Analysis and Simulation of Contact Problems, publisher=Springer Berlin Heidelberg, author=Gutzeit, F and Sextro, Walter and Kröger, Matthias, editor=Wriggers, Peter and Nackenhorst, UdoEditors, year=2006, pages=261–270, collection=Lecture Notes in Applied and Computational Mechanics 

@inproceedingsHemsel_Henning_Kauczor_Littmann_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Powder coating fabrication by ultrasonic standing wave atomizer, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Hemsel, Tobias and Henning, C and Kauczor, Christopher and Littmann, Walter, year=2006, pages=183–186, collection=HNI Verlagsschriftenreihe 

@inproceedingsHemsel_Mracek_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Control of Bundled Miniature Ultrasonic Linear Motors, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Hemsel, Tobias and Mracek, Maik, year=2006, pages=313–322, collection=HNI Verlagsschriftenreihe 

@articleHemsel_Mracek_Twiefel_Vasiljev_2006, title=Piezoelectric linear motor concepts based on coupling of longitudinal vibrations, volume=44, Supplement, DOI=10.1016/j.ultras.2006.05.056, number=0, journal=Ultrasonics, author=Hemsel, Tobias and Mracek, Maik and Twiefel, Jens and Vasiljev, Piotr, year=2006, pages=e591–e596 

@inproceedingsHemsel_Priya_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Model Based Analysis of Piezoelectric Transformers, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Hemsel, Tobias and Priya, S, year=2006, pages=223–228, collection=HNI Verlagsschriftenreihe 

@articleHemsel_Priya_2006, title=Model based analysis of piezoelectric transformers, volume=44, Supplement, DOI=10.1016/j.ultras.2006.05.086, number=0, journal=Ultrasonics, author=Hemsel, Tobias and Priya, S, year=2006, pages=e741–e745 

@inproceedingsHofmeisterro_Sextro_Röschel_2006, place=Obergurgl, \'22Osterreich, title=Error-Workspace Analysis of Plane Mechanisms, booktitle=Proceedings of EUCOMES, the first European Conference on Mechanism Science, author=Hofmeisterro, Adolf and Sextro, Walter and Röschel, Otto, year=2006, pages=1–12 

@articleLierke_Hemsel_2006, title=Focusing cross-fire applicator for ultrasonic hyperthermia of tumors, volume=44, Supplement, DOI=10.1016/j.ultras.2006.07.004, journal=Ultrasonics, author=Lierke, E.G. and Hemsel, Tobias, year=2006, pages=e341–e344 

@inproceedingsLierke_Hemsel_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Focussing Cross-Fire Applicator for Ultrasonic Hyperthermia of Tumors, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Lierke, Ernst-Günter and Hemsel, Tobias, year=2006, pages=215–222, collection=HNI Verlagsschriftenreihe 

@inproceedingsMracek_Hemsel_Mracek_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Powder Transport by Ultrasonic Waves, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Mracek, B and Hemsel, Tobias and Mracek, Maik, year=2006, pages=177–182, collection=HNI Verlagsschriftenreihe 

@articleMracek_Hemsel_2006, title=Synergetic driving concepts for bundled miniature ultrasonic linear motors, volume=44, Supplement, DOI=10.1016/j.ultras.2006.05.201, journal=Ultrasonics, author=Mracek, Maik and Hemsel, Tobias, year=2006, pages=e597–e602 

@articleMracek_Vasiljev_Hemsel_Wallaschek_2006, title=Self configuration of a novel miniature ultrasonic linear motor, volume=113, journal=Solid State Phenomena, publisher=Trans Tech Publ, author=Mracek, Maik and Vasiljev, Piotr and Hemsel, Tobias and Wallaschek, Jörg, year=2006, pages=167–172 

@inproceedingsRichter_Twiefel_Hemsel_Wallaschek_2006, place=Chicago, Illinois, USA, title=Model based design of piezoelectric generators utilizing geometrical and material properties, DOI=doi:10.1115/IMECE2006-14862, booktitle=ASME 2006 International Mechanical Engineering Congress and Exposition, author=Richter, Björn and Twiefel, Jens and Hemsel, Tobias and Wallaschek, Jörg, year=2006 

@inproceedingsSchiedeck_Hemsel_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Comparison of Piezoelectric and Shape Memory Alloy Based Actuators, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Schiedeck, Florian and Hemsel, Tobias, year=2006, pages=239–242, collection=HNI Verlagsschriftenreihe 

@articleSchiedeck_Hemsel_Wallaschek_2006, title=The use of shape memory alloy wires in actuators, volume=113, journal=Solid State Phenomena, publisher=Trans Tech Publ, author=Schiedeck, Florian and Hemsel, Tobias and Wallaschek, Jörg, year=2006, pages=195–198 

@inbookSextro_Moldenhauer_Wangenheim_Lindner_Kröger_2006, series=Lecture Notes in Applied and Computational Mechanics, title=Contact behaviour of a sliding rubber element, volume=27, DOI=10.1007/3-540-31761-9_27, booktitle=Analysis and Simulation of Contact Problems, publisher=Springer Berlin Heidelberg, author=Sextro, Walter and Moldenhauer, Patrick and Wangenheim, M and Lindner, Markus and Kröger, Matthias, editor=Wriggers, Peter and Nackenhorst, UdoEditors, year=2006, pages=243–252, collection=Lecture Notes in Applied and Computational Mechanics 

@inproceedingsTwiefel_Hemsel_Kauczor_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Energy harvesting with piezoelectric Elements, number=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Twiefel, Jens and Hemsel, Tobias and Kauczor, Christopher, year=2006, pages=207–212, collection=HNI Verlagsschriftenreihe 

@bookTwiefel_Richter_Hemsel_Wallaschek_2006, title=Model-based design of piezoelectric energy harvesting systems, volume=6169, DOI=10.1117/12.658623, year=2006, pages=616909-616909–10 

@inproceedingsWilmanns_Nakamura_Mracek_Hemsel_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Non-resonant piezoelectric motors driven in audible frequency range, volume=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Wilmanns, S and Nakamura, K and Mracek, Maik and Hemsel, Tobias, year=2006, pages=205, collection=HNI Verlagsschriftenreihe 

@inproceedingsZhou_Fu_Hemsel_Wallaschek_2006, place=Paderborn, Germany, series=HNI Verlagsschriftenreihe, title=Piezoelectrics in dental tools, volume=Band 180, booktitle=Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, author=Zhou, W and Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg, year=2006, pages=213, collection=HNI Verlagsschriftenreihe 

@articleGenzo_Sextro_Popp_2005, title=Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction Contacts, volume=5, DOI=10.1002/pamm.200510026, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Genzo, Alexander and Sextro, Walter and Popp, Karl, year=2005, pages=91–92 

@inproceedingsHemsel_2005, place=Düsseldorf, series=VDI-Berichte, title=Modellgestützte Analyse piezoelektrischer Transformatoren, volume=1892, number=Band 2, booktitle=Mechatronik 2005 Innovative Produktentwicklung, author=Hemsel, Tobias, year=2005, pages=1013–1032, collection=VDI-Berichte 

@inproceedingsHemsel_Mracek_Twiefel_Vasiljev_Wallaschek_2005, place=Yokohama, Japan, title=Linear ultrasonic motors based on coupling of longitudinal vibrations, booktitle=Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), author=Hemsel, Tobias and Mracek, Maik and Twiefel, Jens and Vasiljev, Piotr and Wallaschek, Jörg, year=2005, pages=32–36 

@articleHofmeister_Sextro_Röschel_2005, title=Unkontrollierbare Bewegungen ebener Mechanismen mit Gelenkspiel, volume=5, DOI=10.1002/pamm.200510078, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Hofmeister, Adolf and Sextro, Walter and Röschel, Otto, year=2005, pages=201–202 

@inproceedingsMracek_Hemsel_Wallaschek_2005, place=Yokohama, Japan, title=Parallel Operation of Ultrasonic Linear Motors, booktitle=Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), author=Mracek, Maik and Hemsel, Tobias and Wallaschek, Jörg, year=2005, pages=23–24 

@inproceedingsTwiefel_Hemsel_Kauczor_Wallaschek_2005, title=Teaching Mechatronics to a Mixed Audience from Industry and University, booktitle=6th International Workshop on Research and Education in Mechatronics, author=Twiefel, Jens and Hemsel, Tobias and Kauczor, Christopher and Wallaschek, Jörg, year=2005, pages=356–361 

@articleGenzo_Sextro_Popp_2005, title=Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction Contacts, volume=5, DOI=10.1002/pamm.200510026, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Genzo, Alexander and Sextro, Walter and Popp, Karl, year=2005, pages=91–92 

@inproceedingsHemsel_Mracek_Wallaschek_Vasiljev_2004, title=A novel approach for high power ultrasonic linear motors, volume=2, DOI=10.1109/ULTSYM.2004.1417988, number=Vol.2, booktitle=Ultrasonics Symposium, 2004 IEEE, author=Hemsel, Tobias and Mracek, Maik and Wallaschek, Jörg and Vasiljev, Piotr, year=2004, pages=1161–1164 

@articleLindner_Sextro_Popp_2004, title=Hysteretic Friction of a Sliding Rubber Element, volume=4, DOI=10.1002/pamm.200410032, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Lindner, Markus and Sextro, Walter and Popp, Karl, year=2004, pages=101–102 

@inproceedingsLittmann_Hemsel_Wallaschek_2004, title=Design criteria for piezoelectric transformers, volume=4, booktitle=Proceedings of the 18th International Congress on Acoustics, author=Littmann, Walter and Hemsel, Tobias and Wallaschek, Jörg, year=2004, pages=2889–2892 

@inproceedingsMracek_Wallaschek_Hemsel_2004, title=Self configuration of miniature ultrasonic linear motors, booktitle=Proceedings of the 18th International Congress on Acoustics, author=Mracek, Maik and Wallaschek, Jörg and Hemsel, Tobias, year=2004, pages=417–420 

@inproceedingsPanning_Popp_Sextro_Götting_2004, place=Vienna, Austria, title=Asymmetrical Underplatform Dampers in Gas Turbine Bladings: Theory and Application, volume=6, DOI=10.1115/GT2004-53316, number=-53316, booktitle=Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, author=Panning, Lars and Popp, Karl and Sextro, Walter and Götting, Florian, year=2004, pages=269–280 

@inproceedingsFu_Hemsel_Wallaschek_2004, title=Model-based Diagnosis for Sandwiched Ultrasonic Transducers, booktitle=Proceedings of the 18th International Congress on Acoustics, ICA, author=Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg, year=2004, pages=4–9 

@inproceedingsFu_Hemsel_Wallaschek_2004, title=Model-based Diagnosis for Sandwiched Ultrasonic Transducers, booktitle=Proceedings of the 18th International Congress on Acoustics, ICA, author=Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg, year=2004, pages=4–9 

@inproceedingsGötting_Sextro_Panning_Popp_2004, title=Systematic mistuning of bladed disk assemblies with friction contacts, volume=6, number=-53310, booktitle=Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, author=Götting, Florian and Sextro, Walter and Panning, Lars and Popp, Karl, year=2004, pages=257–267 

@inproceedingsHemsel_2004, place=Seoul, Korea, title=Linear piezoelectric motors and their application, booktitle=Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), author=Hemsel, Tobias, year=2004 

@inproceedingsGötting_Sextro_Panning_Popp_2003, title=Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen, booktitle=Schwingungen in rotierenden Maschinen VI SIRM, Referate der Tagung in Darmstadt, publisher=Vieweg-Verlag, author=Götting, Florian and Sextro, Walter and Panning, Lars and Popp, Karl, editor=Irretier , H and Nordmann, R and Springer, HEditors, year=2003, pages=201–210 

@articleGenzo_Sextro_Popp_2003, title=Erzwungene Schwingungen von elastischen Mehrkörpersystemen mit Reibkontakten, volume=2, DOI=10.1002/pamm.200310046, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Genzo, Alexander and Sextro, Walter and Popp, Karl, year=2003, pages=120–121 

@inproceedingsHemsel_Wallaschek_2003, title=Modelling and Analysis of Piezoelectric Transformers, booktitle=Proceedings of the 5th International Congress of Intelligent Materials (ICIM), author=Hemsel, Tobias and Wallaschek, Jörg, year=2003 

@inproceedingsLittmann_Hemsel_Kauczor_Wallaschek_Sinha_2003, title=Load-adaptive phase-controller for resonant driven piezoelectric devices, booktitle=Proceedings of World Congress Ultrasonics, author=Littmann, Walter and Hemsel, Tobias and Kauczor, Christopher and Wallaschek, Jörg and Sinha, W, year=2003, pages=547–550 

@articlePanning_Sextro_Popp_2003, title=Design of Friction Dampers for Mistuned Bladed Disks, volume=3, DOI=10.1002/pamm.200310336, number=1, journal=PAMM, publisher=WILEY-VCH Verlag, author=Panning, Lars and Sextro, Walter and Popp, Karl, year=2003, pages=118–119 

@articlePanning_Sextro_Popp_2003, title=Spatial dynamics of tuned and mistuned bladed disks with cylindrical and wedge-shaped friction dampers, volume=9, number=3, journal=International Journal of Rotating Machinery, publisher=Hindawi Publishing Corporation, author=Panning, Lars and Sextro, Walter and Popp, Karl, year=2003, pages=219–228 

@articlePopp_Panning_Sextro_2003, title=Vibration Damping by Friction Forces -Theory and Applications, volume=9, journal=Journal of Vibration and Control, author=Popp, Karl and Panning, Lars and Sextro, Walter, year=2003, pages=419–448 

@inproceedingsSextro_Popp_2003, place=Frankfurt am Main, Germany, title=Optimierung des Schwingungsverhaltens elastischer Strukturen mit Reibfugen am Beispiel von Turbomaschinenschaufeln, number=753, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW), author=Sextro, Walter and Popp, Karl, year=2003, pages=40 

@inproceedingsSzwedowicz_Sextro_Visser_Masserey_2003, place=Atlanta, Georgia, USA, title=On forced vibration of shrouded turbine blades, DOI=doi:10.1115/GT2003-38808, number=-38808, booktitle=ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference, author=Szwedowicz, J and Sextro, Walter and Visser, R and Masserey, P.A, year=2003 

@inproceedingsHemsel_Littmann_Wallaschek_2002, title=Piezoelectric transformers - state of the art and development trends, volume=1, DOI=10.1109/ULTSYM.2002.1193485, number=vol.1, booktitle=Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE, author=Hemsel, Tobias and Littmann, Walter and Wallaschek, Jörg, year=2002, pages=645–648 

@inproceedingsHemsel_Littmann_Wallaschek_2002, title=Piezoelektrische Transformatoren - Bauformen und Modellierung, booktitle=47. Internationales Wissenschaftliches Kolloquium, author=Hemsel, Tobias and Littmann, Walter and Wallaschek, Jörg, year=2002 

@inproceedingsPanning_Sextro_Popp_2002, place=Amsterdam, Niederlande, title=Optimization of the Contact Geometry between Turbine Blades and Underplatform Dampers with respect to Friction Damping, number=GT-2002-30429, booktitle=Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, author=Panning, Lars and Sextro, Walter and Popp, Karl, year=2002 

@inproceedingsPanning_Sextro_Popp_2002, place=Honolulu, Hawaii, USA, title=Spatial dynamics of tuned and mistuned bladed disks with cylindrical and wedge-shaped friction dampers, booktitle=Proceedings of the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC, author=Panning, Lars and Sextro, Walter and Popp, Karl, year=2002 

@inproceedingsSextro_Panning_Götting_2002, place=Amsterdam, Niederlande, title=Fast Calculation of the Statistics of the Forced Response of Mistuned Bladed Disk Assemblies with Friction Contacts, number=GT-2002-30427, booktitle=Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, author=Sextro, Walter and Panning, Lars and Götting, Florian, year=2002 

@inproceedingsSextro_Popp_2002, place=Frankfurt am Main, Germany, title=Optimierung des Schwingungsverhaltens elastischer Strukturen mit Reibfugen, number=518, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW) - lnformationstagung Turbinen, author=Sextro, Walter and Popp, Karl, year=2002, pages=157–183 

@inproceedingsPanning_Sextro_Popp_2001, title=Schwingungsanalyse verstimmter Schaufelkränze mit Reibelementen, booktitle=Schwingungen in rotierenden Maschinen VI SIRM, Referate der Tagung in Wien, publisher=Vieweg-Verlag, author=Panning, Lars and Sextro, Walter and Popp, Karl, editor=Irretier, H and Nordmann, R and Springer, HEditors, year=2001, pages=297–306 

@articleSextro_2001, title=Heat and Wear Generation for Rolling Contacts, volume=81, journal=Zeitschrift für angewandte Mathematik und Mechanik (ZAMM), author=Sextro, Walter, year=2001, pages=225–226 

@inproceedingsSextro_2001, place=Pittsburgh, Pennsylvania, USA, title=Development and Experimental Validation of a Point Contact Model for Dynamical Problems with Friction, number=DE/VIB-21512, booktitle=ASME Design Engineering Technical Conferences, author=Sextro, Walter, year=2001, pages=1–12 

@articleSextro_Popp_Krzyzynski_2001, title=Localization in Nonlinear Mistuned Systems with Cyclic Symmetry, volume=25, DOI=10.1023/A:1012915002568, number=1–3, journal=Nonlinear Dynamics, publisher=Kluwer Academic Publishers, author=Sextro, Walter and Popp, Karl and Krzyzynski, Tomasz, year=2001, pages=207–220 

@inproceedingsWallaschek_Hemsel_2001, series=VDI-Z/Konstruktion, title=Piezoelektrische lineare Schwingungsantriebe, booktitle=Special Antriebstechnik, author=Wallaschek, Jörg and Hemsel, Tobias, year=2001, pages=70–71, collection=VDI-Z/Konstruktion 

@bookHemsel_2001, place=Paderborn, title=Untersuchung und Weiterentwicklung linearer piezoelektrischer Schwingungsantriebe, volume=101, publisher=Verlagsschriftenreihe des Heinz Nixdorf Instituts, author=Hemsel, Tobias, year=2001 

@articleHemsel_Wallaschek_2000, title=Survey of the present state of the art of piezoelectric linear motors, volume=38, DOI=10.1016/S0041-624X(99)00143-2, journal=Ultrasonics, author=Hemsel, Tobias and Wallaschek, Jörg, year=2000, pages=37–40 

@inproceedingsHemsel_Wallaschek_2000, title=State of the art and development trends of ultrasonic linear motors, volume=1, DOI=10.1109/ULTSYM.2000.922635, booktitle=Ultrasonics Symposium, 2000 IEEE, author=Hemsel, Tobias and Wallaschek, Jörg, year=2000, pages=663–666 vol.1 

@inproceedingsHemsel_Wallaschek_2000, place=Bremen, title=Piezoelectic linear motors, booktitle=Tagungsband der ACTUATOR, author=Hemsel, Tobias and Wallaschek, Jörg, year=2000, pages=250–253 

@articleHemsel_Wallaschek_2000, place=D\'22usseldorf, series=VDI-Bericht, title=Stand der Technik und Entwicklungsperspektiven linearer piezoelektrischer Schwingungsantriebe, volume=1533, author=Hemsel, Tobias and Wallaschek, Jörg, year=2000, pages=147–166, collection=VDI-Bericht 

@articleKrzyzynski_Popp_Sextro_2000, title=On some regularities in dynamic response of cyclic periodic structures, volume=11, DOI=10.1016/S0960-0779(99)00080-6, number=10, journal=Chaos, Solitons \'26; Fractals, author=Krzyzynski, Tomasz and Popp, Karl and Sextro, Walter, year=2000, pages=1597–1609 

@inproceedingsPanning_Sextro_Popp_2000, place=Munich, Germany, title=Optimization of Interblade Friction Damper, booktitle=International Gas Turbine \'26; Aeroengine Congress \'26; Exhibition, ASME, author=Panning, Lars and Sextro, Walter and Popp, Karl, year=2000, pages=1–8 

@inproceedingsSextro_2000, place=Munich, Germany, title=The Calculation of the Forced Response of Shrouded Blades with Friction Contacts and Its Experimental Verification, booktitle=International Gas Turbine \'26; Aeroengine Congress \'26; Exhibition, ASME, author=Sextro, Walter, year=2000, pages=1–8 

@inproceedingsPopp_Sextro_1999, place=Heidelberg, title=Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz, number=504, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW) -lnformationstagung Turbinen, author=Popp, Karl and Sextro, Walter, year=1999, pages=21–38 

@inproceedingsSextro_1999, title=Experimental verification of a non-Hertzian contact model, booktitle=International conference on computational methods in contact mechanics, author=Sextro, Walter, year=1999, pages=181–190 

@inproceedingsSextro_1999, place=Las Vegas, Nevada, USA, title=Forced Vibration of Elastic Structures with Friction Contacts, number=DET/VIB-8180, booktitle=ASME Design Engineering Technical Conferences, author=Sextro, Walter, year=1999, pages=1–10 

@articleSextro_Popp_1999, title=Ein ebenes Reibkontaktmodell zur Berechnung von Schaufelschwingungen mit Reibelementen, volume=79, journal=Zeitschrift für angewandte Mathematik und Mechanik (ZAMM), author=Sextro, Walter and Popp, Karl, year=1999, pages=311–312 

@inproceedingsSextro_Popp_1999, place=Frankfurt am Main, Germany, title=Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz, number=686, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW), author=Sextro, Walter and Popp, Karl, year=1999, pages=56 

@inproceedingsHemsel_Krome_Littmann_Wallaschek_1998, place=Ilmenau, Deutschland, title=Modellierung piezoelektrischer Stapel- und Vielschichtaktoren für dynamischen Betrieb, booktitle=Proceedings 2. Polnisch-Deutscher Workshop “Werkzeuge der Mechatronik”, author=Hemsel, Tobias and Krome, Jürgen and Littmann, Walter and Wallaschek, Jörg, year=1998 

@inproceedingsHemsel_Wallaschek_1998, title=A piezoelectric linear vibration drive for high driving forces, number=1, booktitle=Proceedings of VIBROENGINEERING, author=Hemsel, Tobias and Wallaschek, Jörg, year=1998, pages=7–12 

@inproceedingsSextro_Popp_Wolter_1998, place=Kopenhagen, D\'22anemark, title=Vibrational Behaviour of Tuned and Detuned Bladed Disks with Friction Dampers, volume=1, booktitle=International Congress on Combustion Engines, Proceedings of the 22nd CIMAC, author=Sextro, Walter and Popp, Karl and Wolter, I, year=1998, pages=257–270 

@inproceedingsSextro_Popp_Wolter_1998, place=Honolulu, Hawaii, USA, title=Three-Dimensional Vibration of Bladed Disk Assemblies with Friction Dampers, volume=B, booktitle=The 7th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7, author=Sextro, Walter and Popp, Karl and Wolter, I, year=1998, pages=621–630 

@inproceedingsGoldschmidt_Hemsel_Krome_Storck_Wallaschek_1997, place=Waldbronn, Deutschland, title=Schwingungsprüfstand zur vollautomatischen Messung von Ultraschallschwingungen in piezoelektrischen Antrieben, booktitle=Tagungsband zum 4. Laser Vibrometer Seminar der Polytec GmbH, author=Goldschmidt, Stefan and Hemsel, Tobias and Krome, Jürgen and Storck, Heiner and Wallaschek, Jörg, year=1997 

@inproceedingsHemsel_Wallaschek_1997, place=Florenz, Italien, title=Ultrasonic motors for linear positioning tasks in automobiles, booktitle=Proceedings of the 30th International Symposium on Automotive Technology \'26; Automation (ISATA), author=Hemsel, Tobias and Wallaschek, Jörg, year=1997, pages=631–637 

@inproceedingsHemsel_Wallaschek_1997, place=Duisburg, title=Piezoelectric ultrasonic linear motors, number=370, booktitle=EUROMECH, European Mechanics Colloquium “Synthesis of Mechatronic Sytems”, author=Hemsel, Tobias and Wallaschek, Jörg, year=1997 

@inproceedingsPopp_Sextro_1997, place=Frankfurt am Main, Germany, title=Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen, number=496, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW) -lnformationstagung Turbinen, author=Popp, Karl and Sextro, Walter, year=1997, pages=131–142 

@inproceedingsSextro_1997, title=Schwingungsverhalten von Schaufelkränzen mit Reibelementen bei Frequenzverstimmung, volume=11, number=245, booktitle=VDI-Reihe, publisher=VDI-Verlag, Düsseldorf, author=Sextro, Walter, year=1997 

@inproceedingsSextro_Popp_Wolter_1997, title=Improved reliability of bladed disks due to friction dampers, booktitle=The 1997 International Gas Turbine \'26; Aeroengine Congress \'26; Exposition, author=Sextro, Walter and Popp, Karl and Wolter, Ivo, year=1997 

@inproceedingsPopp_Sextro_1996, place=Frankfurt am Main, Germany, title=Schwingungsverhalten eines Schaufelkranzes mit Reibelementen bei Frequenzverstimmung, number=490, booktitle=Forschungsvereinigung Verbrennungskraftmaschinen (FW) - lnformationstagung Turbinen, author=Popp, Karl and Sextro, Walter, year=1996, pages=53–76 

@inproceedingsPopp_Sextro_1996, place=Prag, title=Dynamical Behaviour of a Bladed Disk with Friction Dampers, volume=1, number=518, booktitle=The 2nd European Nonlinear Oscillation Conference - Proceedings of EUROMECH, author=Popp, Karl and Sextro, Walter, year=1996, pages=157–183