Engels, Gregor. “CADDY-O: Syntaxgestütztes, Graphisches Entwerfen Konzeptioneller Datenbankschemata.” Tagungsband GI-Fachtagung “Interaktive Schnittstellen Für Informationssysteme”, TU Clausthal, Notizen Zu Interaktive Systeme, vol. 18, 1989, pp. 1–16.
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Engels, Gregor, et al. “CADDY: Computer-Aided Design of Non-Standard Databases.” Proceedings of the International Conference on System Development Environments &; Factories, Berlin, Germany, Pitman Publishing, 1989.
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Engels, Gregor. Benutzerschnittstelle Und Architektur Der Integrierten Datenbankentwurfsumgebung CADDY (Kurzfassung). TU Braunschweig, 1989.
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Engels, Gregor, and Wilhelm Schäfer. Programmentwicklungsumgebungen: Konzepte Und Realisierung. Teubner, 1989.
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Dellnitz, Michael, and Bodo Werner. “Computational Methods for Bifurcation Problems with Symmetries—with Special Attention to Steady State and Hopf Bifurcation Points.”10.1016/0377-0427(89)90150-7__Journal of Computational and Applied Mathematics, 1989, pp. 97–123, doi:10.1016/0377-0427(89)90150-7.
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Just, Bettina, et al. “On Computations with Integer Division.”10.1051/ita/1989230101011__RAIRO - Theoretical Informatics and Applications, 1989, pp. 101–11, doi:10.1051/ita/1989230101011.
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Dietzfelbinger, M., and Friedhelm Meyer auf der Heide. “An Optimal Parallel Dictionary.”10.1145/72935.72974__Proceedings of the First Annual ACM Symposium on Parallel Algorithms and Architectures  - SPAA ’89, 1989, doi:10.1145/72935.72974.
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Meyer auf der Heide, Friedhelm. “On Genuinely Time Bounded Computations.”10.1007/bfb0028969__STACS 89, 1989, doi:10.1007/bfb0028969.
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Meyer auf der Heide, Friedhelm, and Rolf Wanka. “Time-Optimal Simulations of Networks by Universal Parallel Computers.”10.1007/bfb0028978__STACS 89, 1989, doi:10.1007/bfb0028978.
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Meyer auf der Heide, Friedhelm. “Computing Minimum Spanning Forests on 1- and 2-Dimensional Processor Arrays.”10.1007/bfb0028983__STACS 89, 1989, doi:10.1007/bfb0028983.
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Fuchssteiner, Benno, and Gudrun Oevel. “Geometry and Action-Angle Variables of Multi Soliton Systems.” Rev. Math. Phys., no. 1, 1989, pp. 415–79.
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Haeb-Umbach, Reinhold, and Heinrich Meyr. “A Systematic Approach to Carrier Recovery and Detection of Digitally Phase Modulated Signals on Fading Channels.” IEEE Transactions on Communications, 1989.
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Peckhaus, Volker. “Die Institutionalisierung der Mathematischen Logik in Deutschland.” XVIIIth International Congress of History of Science. General Theme: Science and Political Order. Wissenschaft und Staat. 1st — 9th August 1989 Hamburg — München. Abstracts, edited by Fritz Krafft and Christoph J. Scriba, vol. .4, 1989.
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Wunderlich, Hans-Joachim, and Sybille Hellebrand. “The Pseudo-Exhaustive Test of Sequential Circuits.”10.1109/test.1989.82273__IEEE International Test Conference (ITC’89), IEEE, 1989, pp. 19–27, doi:10.1109/test.1989.82273.
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Tophinke, Doris, editor. Plattdeutsch - ein Pflegefall? Manuskriptdruck, 1989.
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Noé, Reinhold, et al. “PATTERN-INDEPENDENT FSK HETERODYNE TRANSMISSION WITH ENDLESS POLARIZATION CONTROL AND A 119 PHOTOELECTRONS BIT RECEIVER SENSITIVITY.”10.1080/01468038908202887__FIBER AND INTEGRATED OPTICS, vol. 8, no. 4, 1989, pp. 303–06, doi:10.1080/01468038908202887.
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Noé, Reinhold, et al. “POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING.”10.1049/el:19890003__ELECTRONICS LETTERS, vol. 25, no. 1, 1989, pp. 4–5, doi:10.1049/el:19890003.
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Noé, Reinhold, et al. “POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING.”10.1049/el:19890003__ELECTRONICS LETTERS, vol. 25, no. 1, 1989, pp. 4–5, doi:10.1049/el:19890003.
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Rammig, Franz Josef, and Wolfgang Müller. “ODICE: Object-Oriented Hardware Description in CAD Environment.” Proc. of the Ninth IFIP Symposium on CHDLs and Their Application, 1989.
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Heppke, G., et al. “Observation of a Hexagonal Blue Phase in Systems with Negative Dielectric Anisotropy.”10.1080/02678298908026387__Liquid Crystals, vol. 5, no. 3, Informa UK Limited, 1989, pp. 813–28, doi:10.1080/02678298908026387.
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