@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 

@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 

@inproceedingsMüller_1991, place=Grassau Germany, title=Contract-Oriented System Design and Specification, booktitle=Proceedings of the Workshop on Practical Computer Based Systems Engineering - its Scope and Methods, author=Müller, Wolfgang, year=1991 

@inproceedingsLehrenfeld_Müller_1991, place=Houston TX, USA, title=Validation of EXPRESS Models Using Prolog, booktitle=Proceedings of the 1st EXPRESS User’s Group Conference, author=Lehrenfeld, Georg and Müller, Wolfgang, year=1991 

@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 

@articleLasser_Rösler_1991, title=Linear mean estimation of weakly stationary stochastic processes under the aspects of optimality and asymptotic optimality, volume=38, DOI=10.1016/0304-4149(91)90095-t, number=2, journal=Stochastic Processes and their Applications, publisher=Elsevier BV, author=Lasser, R. and Rösler, Margit, year=1991, pages=279–293 

@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 

@articleHilgert_1991, title=Varadarajan, V.S. An Introduction to Harmonic Analysis on Semisimple Lie Groups (Cambridge University Press, 1989), volume=94, number=4, journal=JBer. DMV, author=Hilgert, Joachim, year=1991 

@articleHilgert_1991, title=Terras, A. Harmonic Analysis on Symmetric Spaces I and II (Springer, New York, 1985 und 1988), volume=93, number=2, journal=JBer. DMV, author=Hilgert, Joachim, year=1991 

@articleHilgert_Ólafsson_Orsted_1991, title=Hardy Spaces on Affine Symmetric Spaces, volume=415, journal=J. reine und angew. Math., author=Hilgert, Joachim and Ólafsson, G. and Orsted, B., year=1991, pages=189–218 

@inbookHilgert_1991, place=Wien, title=Group Theoretical Aspects of Gödels Model, booktitle=Jahrbuch der Gödel Gesellschaft, author=Hilgert, Joachim, editor=Hilgert, Joachim, year=1991 

@articleHilgert_1991, title=Infinitesimally Generated Subsemigroups of Motion Groups, volume=21, journal=Rocky Mount. J. Math., author=Hilgert, Joachim, year=1991, pages=865–878 

@bookHilgert_Neeb_1991, place=Wiesbaden, title=Lie-Gruppen und Lie-Algebren, publisher=Vieweg Verlag, year=1991 

@articleHilgert_1991, title=Onishchik, A.L., und E.B. Vinberg. Lie Groups and Algebraic Groups (Springer, New York, 1990), volume=722, journal=Zentralblatt, author=Hilgert, Joachim, year=1991 

@inproceedingsRösler_1991, title=On optimal linear mean estimators for weakly stationary stochastic processes, booktitle=Orthogonal polynomials and their applications (Erice, 1990), publisher=IMACS Ann. Comput. Appl. Math., 9,, author=Rösler, Margit, year=1991, pages=373–378 

@inbookAlt_Blömer_Wagener_1990, place=Berlin/Heidelberg, title=Approximation of convex polygons, DOI=10.1007/bfb0032068, booktitle=Automata, Languages and Programming, publisher=Springer-Verlag, author=Alt, Helmut and Blömer, Johannes and Wagener, Hubert, year=1990, pages=703–716 

@inproceedingsHohenstein_Engels_1990, title=Formal Semantics of an Entity-Relationship Query Language, booktitle=Proceedings of the 9th International Conference on Entity-Relationship Approach (ER 90), Lausanne, Switzerland, publisher=ER Institute, author=Hohenstein, Uwe and Engels, Gregor, year=1990, pages=177–188 

@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