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Trächtler, A., &; Lohmann, B. (1990). Berechnung der Nullstellen quadratischer Mehrgrößensysteme. At-Automatisierungstechnik, 353-354,.
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Hohenstein, U., &; Engels, G. (1990). Formal Semantics of an Entity-Relationship Query Language. In Proceedings of the 9th International Conference on Entity-Relationship Approach (ER 90), Lausanne, Switzerland (pp. 177–188). ER Institute.
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Krauter, S., &; Hanitsch, R. (1990). The Influence of the Capsulation on the Efficiency of PV-Modules. In Proceedings of the 1st World Renewable Energy Congress, Reading (UK), 23.–28. September 1990, Band 1, S. 141–144. Reading (UK).https://doi.org/10.1016/B978-0-08-037539-7.50062-4 
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Engels, G. (1990). Elementary Actions on an Extended Entity-Relationship Database. In Proceedings of the workshop on Graph Grammars and Their Application to Computer Science (1990), Bremen (Germany) (Vol. 532, pp. 344–362). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/BFb0017372 
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Dietzfelbinger, M., &; Meyer auf der Heide, F. (1990). A new universal class of hash functions and dynamic hashing in real time. In Automata, Languages and Programming. Berlin/Heidelberg.https://doi.org/10.1007/bfb0032018 
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Meyer auf der Heide, F. (1990). Dynamic hashing strategies. In Lecture Notes in Computer Science. Berlin/Heidelberg.https://doi.org/10.1007/bfb0029597 
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Karpinski, M., &; Meyer auf der Heide, F. (1990). On the complexity of genuinely polynomial computation. In Lecture Notes in Computer Science. Berlin/Heidelberg.https://doi.org/10.1007/bfb0029630 
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Dietzfelbinger, M., &; Meyer auf der Heide, F. (1990). How to distribute a dictionary in a complete network. In Proceedings of the twenty-second annual ACM symposium on Theory of computing  - STOC ’90.https://doi.org/10.1145/100216.100229 
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Gil, J., Meyer auf der Heide, F., &; Wigderson, A. (1990). Not all keys can be hashed in constant time. In Proceedings of the twenty-second annual ACM symposium on Theory of computing  - STOC ’90.https://doi.org/10.1145/100216.100247 
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Meyer auf der Heide, F. (1990). Das Heinz Nixdorf-Institut der Universität-GH Paderborn. Informatik Spektrum, 13(4), 231–232.
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Domik, G., Brugel, E. W., &; Stencel, R. E. (1990). IRAS On-Line Catalogs at CASA. In Proceedings of the 176th meeting of the American Astronomical Society (Vol. Vol. 22).
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Fuchssteiner, B., &; Oevel, G. (1990). Action-Angle Representation of Multisolitons. Appl. Math. Lett., (3), 75–78.
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Oevel, G., Fuchssteiner, B., &; Blaszak, M. (1990). Action/Angle Variables and Asymptotic Data. In S. Carillo &; O. Ragnisco (Eds.), Nonlinear Evolution Equations and Dynamical Systems. Berlin-Heidelberg-New York: Springer.
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Oevel, G., Fuchssteiner, B., &; Blaszak, M. (1990). Action-Angle Representation of Multisolitons by Potentials of Mastersymmetries. Prog. Theor. Phys., 83, 395–413.
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Oevel, G. (1990). Reduktion integrabler Systeme auf ihre Multisoliton Mannigfaltigkeiten. Universität-Gesamthochschule Paderborn.
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Haeb-Umbach, R., Rugar, D., Howell, T., &; Coleman, G. P. (1990). Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment. In International Conference on Communication, Atlanta.
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Domik, G., Brugel, E., Stencel, R., Vasudevan, S., &; Pang, J. (1990). Applications of IRAS Preprocessing at the Workstation. In Bulletin of the American Astronomical Society (Vol. 22, p. 828).
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Domik, G., Brugel, E. W., Stencel, R. E., Pang, J., &; Vasudevan, S. (1990). Workstation-based preprocessing of IRAS sky-flux images. Publications of the Astronomical Society of the Pacific, 102(656), 1167.
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Mickus, K., Brugel, E., Domik, G., &; Ayres, T. (1990). A case study: Multi-sensor data analysis of hh objects via star: A scientific toolkit for astrophysical research. In Bulletin of the American Astronomical Society (Vol. 22, p. 1259).
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