@bookSchöwerling_Steinecke_Eke_Tiggesbäumker_1992, place=München, title=Die Fürstliche Bibliothek Corvey. Ihre Bedeutung für eine neue Sicht der Literatur des frühen 19. Jahrhunderts. Beiträge des 1. Internationalen Corvey-Symposions. 25.-27. Oktober 1990 in Paderborn, publisher=Fink, year=1992 

@inbookBüker_Kampe_1991, place=Paderborn, title=Auf den Spuren der alten Stadtmauer: Ein Unterrichtsgang um die Altstadt Paderborns, booktitle=Paderborn - vom Werden und Wachsen unserer Stadt (Materialien, Unterrichtsentwürfe, Arbeitsmittel),  (Paderborner Geographische Studien; Bd.3), publisher=Selbstverlag des Faches Geographie der Universität-GH-Paderborn, author=Büker, Petra and Kampe, Susanne, editor=Düsterloh, DiethelmEditor, year=1991, pages=105–109 

@bookPeckhaus_1991, title=Modern Logic 1 (1990/91), H. 2/3 (Winter 1990/91), Special issue commemorating the centenary of the publication of the first volume of Ernst Schröder’s Vorlesungen über die Algebra der Logik, volume=H. 2/3, year=1991 

@articlePeckhaus_1991, title=Introduction, volume=1, number=2/3, journal=Modern Logic, author=Peckhaus, Volker, year=1991, pages=113–116 

@inproceedingsDomik_1991, place=Berlin, Heidelberg, title=The role of visualization in understanding data, booktitle=New Results and New Trends in Computer Science, publisher=Springer Berlin Heidelberg, author=Domik, Gitta, editor=Maurer, HermannEditor, year=1991, pages=91–107 

@inproceedingsKrauter_Hanitsch_Strauss_1991, title=Simulation-Program for Selecting Efficiency Improving Strategies of PV-Module-Encapsulations under Operating Conditions, booktitle=Proceedings of “Renewable Energy Sources ”, Prag (CFSR), 1.–4. Juli 1991, Band 3, S. 48–53., author=Krauter, Stefan and Hanitsch, Rolf and Strauss, Philipp, year=1991 

@inbookStelter_Sextro_1991, series=International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / S\rquote erie Internationale d’Analyse Num\rquote erique, title=Bifurcations in Dynamic Systems with Dry Friction, volume=97, DOI=10.1007/978-3-0348-7004-7_44, booktitle=Bifurcation and Chaos: Analysis, Algorithms, Applications, publisher=Birkhäuser Basel, author=Stelter, Peter and Sextro, Walter, editor=Seydel, R. and Schneider, F.W. and Küpper, T. and Troger, H.Editors, year=1991, pages=343–347, collection=International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / S\rquote erie Internationale d’Analyse Num\rquote erique 

@inproceedingsDomik_Mickus_1991, title=Visualization in the Analysis Cycle of Observational Data, in Analyzing and Modeling Data and Knowledge, booktitle=Proceedings of the 15th Annual Conference of the “Gesellschaft für Klassifikation e.V.” University of Salzburg, author=Domik, Gitta and Mickus, KD , editor=Schader, M.Editor, year=1991, pages=267–276 

@inproceedingsHaeb-Umbach_Ney_1991, title=A Look-Ahead Technique for Large Vocabulary Continuous Speech Recognition, booktitle=EUROSPEECH, Genova, author=Haeb-Umbach, Reinhold and Ney, Hermann, year=1991 

@bookHellebrand_1991, place=Verlag Düsseldorf: VDI Verlag, series=10, title=Synthese vollständig testbarer Schaltungen, publisher=Verlag Düsseldorf: VDI Verlag, author=Hellebrand, Sybille, year=1991, collection=10 

@articlePeckhaus_1991, title=Ernst Schröder und die ,pasigraphischen Systeme‘ von Peano und Peirce, volume=1, number=2/3, journal=Modern Logic, author=Peckhaus, Volker, year=1991, pages=174–205 

@inproceedingsBöcker_Janning_1991, title=Discrete-Time Flux Observer for PWM Inverter-Fed Induction Motors, volume=2, booktitle=EPE’91, Florence, 1991, author=Böcker, Joachim and Janning, Jörg, year=1991, pages=171–176 

@articleBöcker_1991, title=Discrete-time model of an induction motor, volume=1, number=2, journal=European transactions on electrical power, author=Böcker, Joachim, year=1991, pages=65–71 

@articleNoé_RODLER_EBBERG_GAUKEL_NOLL_WITTMANN_AURACHER_1991, title=COMPARISON OF POLARIZATION HANDLING METHODS IN COHERENT OPTICAL-SYSTEMS, volume=9, DOI=10.1109/50.90934, number=10, journal=JOURNAL OF LIGHTWAVE TECHNOLOGY, author=Noé, Reinhold and RODLER, HJ and EBBERG, A and GAUKEL, G and NOLL, B and WITTMANN, J and AURACHER, F, year=1991, pages=1353–1366 

@inbookSchroeter-Wittke_1991, place=Gütersloh, title=Letzter Sonntag nach Epiphanias; Predigttext: 2. Korinther 4,6-10, volume=132–139, booktitle=Gottesdienstpraxis. Serie A. II. Perikopenreihe Band 1, publisher=Gütersloher Verlagshaus, author=Schroeter-Wittke, Harald, editor=Nitschke, Horst, year=1991 

@inproceedingsGoser_Hilleringmann_Rückert_1991, place=Berlin, Heidelberg, title=Application and implementation of neural networks in microelectronics, booktitle=Artificial Neural Networks, publisher=Springer Berlin Heidelberg, author=Goser, K. and Hilleringmann, Ulrich and Rückert, U., editor=Prieto, Alberto, year=1991, pages=243–259 

@bookPeckhaus_1990, place=Göttingen, series=Studien zur Wissenschafts-, Sozial- und Bildungsgeschichte der Mathematik, title=Hilbertprogramm und Kritische Philosophie. Das Göttinger Modell interdisziplinärer Zusammenarbeit zwischen Mathematik und Philosophie, volume=7, publisher=Vandenhoeck &; Ruprecht, author=Peckhaus, Volker, year=1990, collection=Studien zur Wissenschafts-, Sozial- und Bildungsgeschichte der Mathematik 

@bookEke_Oellers_Skrodzki_Steinecke_1990, place=Wien, title=Nikolaus Lenau. Werke und Briefe. Historisch-kritische Gesamtausgabe. Bd. 6,1: Briefe 1838-1847. Teil 1: Text (Edition), publisher=Österreichischer Bundesverlag, Klett-Cotta, author=Eke, Norbert Otto and Oellers, Norbert and Skrodzki, Karl Jürgen and Steinecke, Hartmut, year=1990 

@inproceedingsKrauter_Hanitsch_1990, title=The Influence of the Capsulation on the Efficiency of PV-Modules., DOI=10.1016/B978-0-08-037539-7.50062-4, booktitle=Proceedings of the 1st World Renewable Energy Congress, Reading (UK), 23.–28. September 1990, Band 1, S. 141–144., author=Krauter, Stefan and Hanitsch, Rolf, year=1990 

@inproceedingsHaeb-Umbach_Rugar_Howell_Coleman_1990, title=Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment, booktitle=International Conference on Communication, Atlanta, author=Haeb-Umbach, Reinhold and Rugar, D. and Howell, T. and Coleman, G. P., year=1990