@inbookPeckhaus_2004, place=Berlin/New York, series=de Gruyter Series in Logic and its Applications, title=Paradoxes in Göttingen, volume=6, booktitle=One Hundred Years of Russell’s Paradox. Mathematics, Logic, Philosophy, publisher=de Gruyter, author=Peckhaus, Volker, editor=Link, Godehard, year=2004, pages=501–515, collection=de Gruyter Series in Logic and its Applications 

@inbookPeckhaus_2004, place=Berlin, series=Logische Philosophie, title=Garantiert Widerspruchsfreiheit Existenz?, booktitle=Was folgt? Themen zu Wessel, publisher=Logos Verlag, author=Peckhaus, Volker, editor=Christiansen, Bente and Scheffler, Uwe, year=2004, pages=111–127, collection=Logische Philosophie 

@articlePeckhaus_2004, title=Calculus Ratiocinator vs. Characteristica Universalis? The Two Traditions in Logic, Revisted, volume=25, journal=History and Philosophy of Logic (Special Issue in Honor of Ivor Grattan-Guinness, hg. v. John W. Dawson, Jr.), author=Peckhaus, Volker, year=2004, pages=3–14 

@inbookPeckhaus_2004, place=New Delhi, title=Dignaga’s Logic of Invention, booktitle=History of the Mathematical Sciences, publisher=Hindustan Book Agency, author=Peckhaus, Volker, editor=Grattan-Guinness, Ivor and Yadav, B. S., year=2004, pages=97–107 

@inbookPeckhaus_2004, place=Amsterdam u. a., title=Schröder’s Logic, booktitle=Handbook of the History of Logic, Bd. 3: The Rise of Modern Logic: From Leibniz to Frege, publisher=Elsevier North Holland, author=Peckhaus, Volker, editor=Gabbay, Dov M. and Woods, John, year=2004, pages=557–609 

@inbookPeckhaus_2004, place=Paderborn, title=Scholz als Metaphysiker, booktitle=Heinrich Scholz: Logiker, Philosoph, Theologe, publisher=mentis-Verlag, author=Peckhaus, Volker, editor=Schmidt am Busch, Hans-Christoph and Wehmeier, Kai F. , year=2004, pages=69–83 

@inbookPeckhaus_2004, place=Tampere, series=Acta Philosofica Tamperensia, title=Who was Wilhelm Schlötel?, booktitle=Filosofisia tutkielmia - Philosophical Studies in honorem Leila Haaparanta, publisher=Tampere University Press, author=Peckhaus, Volker, editor=Luoma, Kaisa and Oesch, Erna and Vilkko, Risto, year=2004, pages=285–296, collection=Acta Philosofica Tamperensia 

@inproceedingsSchafmeister_Kolar_2004, place=Aachen, Germany, title=Novel Modulation Schemes for Conventional and Sparse Matrix Converters Facilitating Reactive Power Transfer Independent of Active Power Flow, volume=4, booktitle=Proc. 35th IEEE Power Electronics Specialists Conference (PESC), publisher=IEEE, author=Schafmeister, Frank and Kolar, Johann, year=2004, pages=2917–2923 

@inproceedingsIde_Schafmeister_Fröhleke_Grotstollen_2004, place=Aachen, Germany, title=Enhanced Control Scheme for Three-Phase / Three-Level Rectifiers at Partial Load, volume=1, booktitle=Proc. 35th IEEE Power Electronics Specialists Conference (PESC), publisher=IEEE, author=Ide, Peter  and Schafmeister, Frank and Fröhleke, Norbert and Grotstollen, Horst, year=2004, pages=207–213 

@inproceedingsSchafmeister_Kolar_2004, place=Riga, Latvia, title=Novel Hybrid Modulation Schemes Extending the Reactive Power Control Range of Conventional and Sparse Matrix Converters Operating at Maximum Output Voltage, booktitle=Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC), publisher=EPE, author=Schafmeister, Frank and Kolar, Johann, year=2004 

@articleBöcker_Amann_Schulz_2004, title=Active Suppression of Torsional Oscillations, volume=37, DOI=10.1016/s1474-6670(17)31123-0, number=14, journal=IFAC Proceedings Volumes, publisher=Elsevier BV, author=Böcker, Joachim and Amann, Notker and Schulz, Bernd, year=2004, pages=319–324 

@articleAmann_Böcker_Prenner_2004, title=Active Damping of Drive Train Oscillations for an Electrically Driven Vehicle, volume=9, DOI=10.1109/tmech.2004.839036, number=4, journal=IEEE/ASME Transactions on Mechatronics, publisher=Institute of Electrical and Electronics Engineers (IEEE), author=Amann, Notker and Böcker, Joachim and Prenner, Franz, year=2004, pages=697–700 

@inproceedingsBöcker_2004, title=Tolerance band controller for a three-level four-quadrant converter including DC link balancing, DOI=10.1109/pesc.2004.1354749, booktitle=2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.041), publisher=IEEE, author=Böcker, Joachim, year=2004 

@inproceedingsNjiende_Fröhleke_Böcker_2004, title=Derivation of integrated magnetic components using reluctance and mathematical modeling, DOI=10.1109/pesc.2004.1354859, booktitle=2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.041), publisher=IEEE, author=Njiende, H.D. and Fröhleke, N. and Böcker, Joachim, year=2004 

@inproceedingsKauczor_Fröhleke_2004, title=Inverter topologies for ultrasonic piezoelectric transducers with high mechanical Q-factor, DOI=10.1109/pesc.2004.1355265, booktitle=2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.041), publisher=IEEE, author=Kauczor, C. and Fröhleke, Norbert, year=2004 

@inproceedingsWetzel_Siegel_Njiende_Fröhleke_Böcker_2004, title=Low Voltage Asymmetrical Half-Bridge Converter with Integrated Magnetics, booktitle=11th International Power Electronics and Motion Control Conferences, Riga, Latvia, author=Wetzel, H. and Siegel, A. and Njiende, H. and Fröhleke, Norbert and Böcker, Joachim, year=2004 

@inproceedingsSchulz_Pottharst_Fröhleke_Böcker_2004, title=Modelling of Influences to a Linear-Drive-System, booktitle=11th International Power Electronics and Motion Control Conferences, Riga, Latvia, author=Schulz, B. and Pottharst, A. and Fröhleke, N. and Böcker, Joachim, year=2004 

@inproceedingsPottharst_Baptist_Schütze_Böcker_Fröhleke_Dellnitz_2004, title=Operating Point Assignment of a Linear Motor Driven Vehicle Using Multiobjective Optimization Methods, booktitle=11th International Power Electronics and Motion Control Conferences, Riga, Latvia, author=Pottharst, A. and Baptist, K. and Schütze, O. and Böcker, Joachim and Fröhleke, N. and Dellnitz, M., year=2004 

@inproceedingsLi_Pottharst_Fröhleke_Böcker_2004, title=Energy Storage Scheme for Rail-guided Shuttle using Ultracapacitor and Battery, booktitle=11th International Power Electronics and Motion Control Conferences, Riga, Latvia, author=Li, R. and Pottharst, A. and Fröhleke, N. and Böcker, Joachim, year=2004 

@inproceedingsLi_Pottharst_Fröhleke_Böcker_2004, title=Analysis and Design of Improved Isolated Full-Bridge Bi-Directional DC-DC Converter, booktitle=PESC 2004, Aachen, Germany, author=Li, R. and Pottharst, A. and Fröhleke, N. and Böcker, Joachim, year=2004