Hemsel, Tobias, and Jens Twiefel. “Piezoelectric Ultrasonic Power Transducers.”10.1016/b978-0-12-819728-8.00047-4__Reference Module in Materials Science and Materials Engineering, Elsevier, 2022, doi:10.1016/b978-0-12-819728-8.00047-4.

Hunstig, Matthias, et al. “High-Velocity Operation of Piezoelectric Inertia Motors: Experimental Validation.”10.1007/s00419-014-0940-0__Archive of Applied Mechanics, Springer Berlin Heidelberg, 2014, pp. 1–9, doi:10.1007/s00419-014-0940-0.

Hunstig, Matthias, et al. “High-Velocity Slip-Slip Operation of Piezoelectric Inertia Motors - Experimental Validation.” Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop, 2013, pp. 16–18.

Hunstig, Matthias, et al. “Modelling the Friction Contact in an Inertia Motor.”10.1177/1045389X12474354__Journal of Intelligent Material Systems and Structures, vol. 24, no. 11, 2013, pp. 1380–91, doi:10.1177/1045389X12474354.

Hunstig, Matthias, et al. “Stick-Slip and Slip-Slip Operation of Piezoelectric Inertia Drives - Part II: Frequency-Limited Excitation.”10.1016/j.sna.2012.11.043__Sensors and Actuators A: Physical, vol. 200, 2013, pp. 79–89, doi:10.1016/j.sna.2012.11.043.

Hunstig, Matthias, et al. “Stick-Slip and Slip-Slip Operation of Piezoelectric Inertia Drives - Part I: Ideal Excitation.”10.1016/j.sna.2012.11.012__Sensors and Actuators A: Physical, vol. 200, 2013, pp. 90–100, doi:10.1016/j.sna.2012.11.012.

Yokouchi, Yuriko, et al. “Piezoelectric Properties of CuO-Doped (K,Na)NbO3 Lead-Free Ceramics Synthesized with Hydrothermal Powders.”10.7567/JJAP.52.07HB03__Japanese Journal of Applied Physics, vol. 52, no. 7S, 2013, doi:10.7567/JJAP.52.07HB03.

Hunstig, Matthias, et al. “An Efficient Simulation Technique for High-Frequency Piezoelectric Inertia Motors.”10.1109/ULTSYM.2012.0068__Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 277–80, doi:10.1109/ULTSYM.2012.0068.

Hunstig, Matthias, et al. “Analysis of Different Operation Modes for Inertia Motors.” ACTUATOR 2012 Conference Proceedings, 2012, pp. 761–64.

Hemsel, Tobias, et al. “Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers.”10.3938/jkps.57.933__Journal of Korean Physical Society, vol. 57, no. 4, 2010, pp. 933–37, doi:10.3938/jkps.57.933.

Hunstig, Matthias, and Tobias Hemsel. “Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors.”10.3938/jkps.57.938__Journal of Korean Physical Society, vol. 57, no. 4, 2010, pp. 938–41, doi:10.3938/jkps.57.938.

Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor.”10.3938/jkps.57.952__Journal of Korean Physical Society, vol. 57, no. 4, 2010, pp. 952–54, doi:10.3938/jkps.57.952.

Hunstig, Matthias, et al. “Improving the Performance of Piezoelectric Inertia Motors.” ACTUATOR 2010 Conference Proceedings, 2010, pp. 657–61.

Hunstig, Matthias, and Tobias Hemsel. “Modellbasierte Entwicklung Piezoelektrischer Trägheitsmotoren.” 6. Paderborner Workshop Entwurf Mechatronischer Systeme, edited by Jürgen Gausemeier et al., vol. 250, Heinz Nixdorf Institut, Universität Paderborn, 2009, pp. 85–96.

Mracek, Maik, et al. “Driving Concepts for Bundled Ultrasonic Linear Motors.”10.1007/s10832-007-9123-5__Journal of Electroceramics, vol. 20, no. 3–4, Springer US, 2008, pp. 153–58, doi:10.1007/s10832-007-9123-5.

Twiefel, Jens, et al. “Fundamental Experiments as Benchmark Problems for Modeling Ultrasonic Micro-Impact Processes.”10.1007/s10832-007-9169-4__Journal of Electroceramics, vol. 20, no. 3–4, Springer US, 2008, pp. 209–14, doi:10.1007/s10832-007-9169-4.

Hemsel, Tobias, and Maik Mracek. “Control of Bundled Miniature Ultrasonic Linear Motors.” Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, no. Band 180, 2006, pp. 313–22.

Hemsel, Tobias, et al. “Piezoelectric Linear Motor Concepts Based on Coupling of Longitudinal Vibrations.”10.1016/j.ultras.2006.05.056__Ultrasonics, vol. 44, Supplement, no. 0, 2006, pp. e591–96, doi:10.1016/j.ultras.2006.05.056.

Mracek, Maik, and Tobias Hemsel. “Synergetic Driving Concepts for Bundled Miniature Ultrasonic Linear Motors.”10.1016/j.ultras.2006.05.201__Ultrasonics, vol. 44, Supplement, 2006, pp. e597–602, doi:10.1016/j.ultras.2006.05.201.

Mracek, Maik, et al. “Self Configuration of a Novel Miniature Ultrasonic Linear Motor.” Solid State Phenomena, vol. 113, Trans Tech Publ, 2006, pp. 167–72.