Domik, Gitta, and KD  Mickus. “Visualization in the Analysis Cycle of Observational Data, in Analyzing and Modeling Data and Knowledge.” In Proceedings of the 15th Annual Conference of the “Gesellschaft Für Klassifikation e.V.” University of Salzburg, edited by M. Schader, 267–76, 1991.
LibreCat: /record/16912

Peckhaus, Volker. “Ernst Schröder und die ,pasigraphischen Systeme‘ von Peano und Peirce.” Modern Logic 1, no. 2/3 (1991): 174–205.
LibreCat: /record/17473

Peckhaus, Volker. “Logic in Transition: The Logical Calculi of Hilbert (1905) and Zermelo (1908) [Abstract].” In Abstracts of the 9th International Congress of Logic, Methodology and Philosophy of Science, Uppsala, August 7–14, 1991, Bd. 2: General Philosophy of Science. Sections 6–9, 158. o.O.u.J. (Uppsala), 1991.
LibreCat: /record/17822

Müller, Wolfgang. “Contract-Oriented System Design and Specification.” In Proceedings of the Workshop on Practical Computer Based Systems Engineering - Its Scope and Methods. Grassau Germany, 1991.
LibreCat: /record/39584

Lehrenfeld, Georg, and Wolfgang Müller. “Validation of EXPRESS Models Using Prolog.” In Proceedings of the 1st EXPRESS User’s Group Conference. Houston TX, USA, 1991.
LibreCat: /record/39583

Schroeter-Wittke, Harald. “Letzter Sonntag Nach Epiphanias; Predigttext: 2. Korinther 4,6-10.” In Gottesdienstpraxis. Serie A. II. Perikopenreihe Band 1, edited by Horst Nitschke, Vol. 132–139. Gütersloh: Gütersloher Verlagshaus, 1991.
LibreCat: /record/43478

Goser, K., Ulrich Hilleringmann, and U. Rückert. “Application and Implementation of Neural Networks in Microelectronics.” In Artificial Neural Networks, edited by Alberto Prieto, 243–259. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991.
LibreCat: /record/39922

Eke, Norbert Otto. “Maximilian von Löwenthal.” In Literatur Lexikon. Autoren und Werke deutscher Sprache. Bd. 7, edited by Walther Killy, 7:332. Gütersloh, München, 1990.
LibreCat: /record/19490

Alt, Helmut, Johannes Blömer, and Hubert Wagener. “Approximation of Convex Polygons.”https://doi.org/10.1007/bfb0032068__In Automata, Languages and Programming, 703–16. Berlin/Heidelberg: Springer-Verlag, 1990.https://doi.org/10.1007/bfb0032068 .
LibreCat: /record/3050
DOI: 10.1007/bfb0032068

Peckhaus, Volker. Hilbertprogramm und Kritische Philosophie. Das Göttinger Modell interdisziplinärer Zusammenarbeit zwischen Mathematik und Philosophie. Vol. 7. Studien zur Wissenschafts-, Sozial- und Bildungsgeschichte der Mathematik. Göttingen: Vandenhoeck &; Ruprecht, 1990.
LibreCat: /record/17445

Eke, Norbert Otto, Norbert Oellers, Karl Jürgen Skrodzki, and Hartmut Steinecke. Nikolaus Lenau. Werke und Briefe. Historisch-kritische Gesamtausgabe. Bd. 6,1: Briefe 1838-1847. Teil 1: Text (Edition). Wien: Österreichischer Bundesverlag, Klett-Cotta, 1990.
LibreCat: /record/19151

Hohenstein, Uwe, and Gregor Engels. “Formal Semantics of an Entity-Relationship Query Language.” In Proceedings of the 9th International Conference on Entity-Relationship Approach (ER 90), Lausanne, Switzerland, 177–88. ER Institute, 1990.
LibreCat: /record/7824

Krauter, Stefan, and Rolf Hanitsch. “The Influence of the Capsulation on the Efficiency of PV-Modules.”https://doi.org/10.1016/B978-0-08-037539-7.50062-4__In Proceedings of the 1st World Renewable Energy Congress, Reading (UK), 23.–28. September 1990, Band 1, S. 141–144., 1990.https://doi.org/10.1016/B978-0-08-037539-7.50062-4 .
LibreCat: /record/8081
DOI: 10.1016/B978-0-08-037539-7.50062-4

Engels, Gregor. “Elementary Actions on an Extended Entity-Relationship Database.”http://dx.doi.org/10.1007/BFb0017372__In Proceedings of the Workshop on Graph Grammars and Their Application to Computer Science (1990), Bremen (Germany), 532:344–62. Berlin/Heidelberg: Springer, 1990.http://dx.doi.org/10.1007/BFb0017372 .
LibreCat: /record/8259
DOI: http://dx.doi.org/10.1007/BFb0017372

Dietzfelbinger, Martin, and Friedhelm Meyer auf der Heide. “A New Universal Class of Hash Functions and Dynamic Hashing in Real Time.”https://doi.org/10.1007/bfb0032018__In Automata, Languages and Programming. Berlin/Heidelberg, 1990.https://doi.org/10.1007/bfb0032018 .
LibreCat: /record/16738
DOI: 10.1007/bfb0032018

Meyer auf der Heide, Friedhelm. “Dynamic Hashing Strategies.”https://doi.org/10.1007/bfb0029597__In Lecture Notes in Computer Science. Berlin/Heidelberg, 1990.https://doi.org/10.1007/bfb0029597 .
LibreCat: /record/16739
DOI: 10.1007/bfb0029597

Karpinski, Marek, and Friedhelm Meyer auf der Heide. “On the Complexity of Genuinely Polynomial Computation.”https://doi.org/10.1007/bfb0029630__In Lecture Notes in Computer Science. Berlin/Heidelberg, 1990.https://doi.org/10.1007/bfb0029630 .
LibreCat: /record/16740
DOI: 10.1007/bfb0029630

Dietzfelbinger, M., and Friedhelm Meyer auf der Heide. “How to Distribute a Dictionary in a Complete Network.”https://doi.org/10.1145/100216.100229__In Proceedings of the Twenty-Second Annual ACM Symposium on Theory of Computing  - STOC ’90, 1990.https://doi.org/10.1145/100216.100229 .
LibreCat: /record/16741
DOI: 10.1145/100216.100229

Gil, J., Friedhelm Meyer auf der Heide, and A. Wigderson. “Not All Keys Can Be Hashed in Constant Time.”https://doi.org/10.1145/100216.100247__In Proceedings of the Twenty-Second Annual ACM Symposium on Theory of Computing  - STOC ’90, 1990.https://doi.org/10.1145/100216.100247 .
LibreCat: /record/16742
DOI: 10.1145/100216.100247

Meyer auf der Heide, Friedhelm. “Das Heinz Nixdorf-Institut Der Universität-GH Paderborn.” Informatik Spektrum 13, no. 4 (1990): 231–32.
LibreCat: /record/16824

Domik, Gitta, E.W. Brugel, and R.E. Stencel. “IRAS On-Line Catalogs at CASA.” In Proceedings of the 176th Meeting of the American Astronomical Society, Vol. Vol. 22. BAAS, 1990.
LibreCat: /record/16913

Haeb-Umbach, Reinhold, D. Rugar, T. Howell, and G. P. Coleman. “Coding and Signal Processing for a Magneto-Optic Resonant Bias Coil Overwrite Experiment.” In International Conference on Communication, Atlanta, 1990.
LibreCat: /record/11800

Domik, Gitta, EW Brugel, RE Stencel, S Vasudevan, and J Pang. “Applications of IRAS Preprocessing at the Workstation.” In Bulletin of the American Astronomical Society, 22:828, 1990.
LibreCat: /record/15393

Domik, Gitta, Edward W Brugel, Robert E Stencel, Jinzhong Pang, and Subramanian Vasudevan. “Workstation-Based Preprocessing of IRAS Sky-Flux Images.” Publications of the Astronomical Society of the Pacific 102, no. 656 (1990): 1167.
LibreCat: /record/15394

Mickus, KD, EW Brugel, Gitta Domik, and TR Ayres. “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, 22:1259, 1990.
LibreCat: /record/15395

Mickus, KD, Gitta Domik, EW Brugel, and TR Ayres. “Star-a Scientific Toolkit for Astrophysical Research.” In Bulletin of the American Astronomical Society, 22:828, 1990.
LibreCat: /record/15051

Kleine Büning, Hans, Theodor Lettmann, and Ernst W. Mayr. “Projections of Vector Addition System Reachability Sets Are Semilinear.”https://doi.org/10.1016/0304-3975(89)90055-8__Theoretical Computer Science, 1989, 343–50.https://doi.org/10.1016/0304-3975(89)90055-8 .
LibreCat: /record/19818
DOI: 10.1016/0304-3975(89)90055-8

Eke, Norbert Otto, András Vizkelety, Karl Jürgen Skrodzki, and Hartmut Steinecke. Nikolaus Lenau. Werke und Briefe. Historisch-kritische Gesamtausgabe. Bd. 5,1: Briefe 1812-1837. Teil 1: Text (Edition). Wien: Österreichischer Bundesverlag, Klett-Cotta, 1989.
LibreCat: /record/19152

Zimmer, Detmar. Flankenspielorientierte Einstellung Der Hypoid- Und Kegelradgetriebe. Universität Stuttgart, 1989.
LibreCat: /record/22313

Ebert, Jürgen, and Gregor Engels. “Konzepte Einer Software-Architektur-Beschreibungssprache.” In Software-Entwicklung: Konzepte, Erfahrungen, Perspektiven, Fachtagung, 1989, Marburg (Germany), 212:238–50. Informatik-Fachberichte. Berlin/Heidelberg: Springer, 1989.
LibreCat: /record/7821

Engels, Gregor. “CADDY-O: Syntaxgestütztes, Graphisches Entwerfen Konzeptioneller Datenbankschemata.” In Tagungsband GI-Fachtagung “Interaktive Schnittstellen Für Informationssysteme”, TU Clausthal, Notizen Zu Interaktive Systeme, 18:1–16, 1989.
LibreCat: /record/7822

Engels, Gregor, Uwe Hohenstein, Klaus Hülsmann, Perdita Löhr-Richter, and Hans-Dietrich Ehrich. “CADDY: Computer-Aided Design of Non-Standard Databases.” In Proceedings of the International Conference on System Development Environments &; Factories, Berlin, Germany. Berlin: Pitman Publishing, 1989.
LibreCat: /record/7823

Engels, Gregor. Benutzerschnittstelle Und Architektur Der Integrierten Datenbankentwurfsumgebung CADDY (Kurzfassung). TU Braunschweig, 1989.
LibreCat: /record/8187

Engels, Gregor, and Wilhelm Schäfer. Programmentwicklungsumgebungen: Konzepte Und Realisierung. Stuttgart: Teubner, 1989.
LibreCat: /record/7511

Dellnitz, Michael, and Bodo Werner. “Computational Methods for Bifurcation Problems with Symmetries—with Special Attention to Steady State and Hopf Bifurcation Points.”https://doi.org/10.1016/0377-0427(89)90150-7__Journal of Computational and Applied Mathematics, 1989, 97–123.https://doi.org/10.1016/0377-0427(89)90150-7 .
LibreCat: /record/16682
DOI: 10.1016/0377-0427(89)90150-7

Just, Bettina, Friedhelm Meyer auf der Heide, and Avi Wigderson. “On Computations with Integer Division.”https://doi.org/10.1051/ita/1989230101011__RAIRO - Theoretical Informatics and Applications, 1989, 101–11.https://doi.org/10.1051/ita/1989230101011 .
LibreCat: /record/16743
DOI: 10.1051/ita/1989230101011

Dietzfelbinger, M., and Friedhelm Meyer auf der Heide. “An Optimal Parallel Dictionary.”https://doi.org/10.1145/72935.72974__In Proceedings of the First Annual ACM Symposium on Parallel Algorithms and Architectures  - SPAA ’89, 1989.https://doi.org/10.1145/72935.72974 .
LibreCat: /record/16744
DOI: 10.1145/72935.72974

Meyer auf der Heide, Friedhelm. “On Genuinely Time Bounded Computations.”https://doi.org/10.1007/bfb0028969__In STACS 89. Berlin/Heidelberg, 1989.https://doi.org/10.1007/bfb0028969 .
LibreCat: /record/16745
DOI: 10.1007/bfb0028969

Meyer auf der Heide, Friedhelm, and Rolf Wanka. “Time-Optimal Simulations of Networks by Universal Parallel Computers.”https://doi.org/10.1007/bfb0028978__In STACS 89. Berlin/Heidelberg, 1989.https://doi.org/10.1007/bfb0028978 .
LibreCat: /record/16746
DOI: 10.1007/bfb0028978

Meyer auf der Heide, Friedhelm. “Computing Minimum Spanning Forests on 1- and 2-Dimensional Processor Arrays.”https://doi.org/10.1007/bfb0028983__In STACS 89. Berlin, Heidelberg, 1989.https://doi.org/10.1007/bfb0028983 .
LibreCat: /record/16789
DOI: 10.1007/bfb0028983

Rammig, Franz Josef, and Wolfgang Müller. “ODICE: Object-Oriented Hardware Description in CAD Environment.” In Proc. of the Ninth IFIP Symposium on CHDLs and Their Application. Washington DC, 1989.
LibreCat: /record/39585

Kleine Büning, Hans, and Theodor Lettmann. “Perspektiven Für Die Logikprogrammierung.” In Workshop Wissensrepräsentation in Expertensystemen, edited by G. Rahmstorf, 56–78. Berlin, Heidelberg, 1988.
LibreCat: /record/19820

Engels, Gregor, Thorsten Janning, and Wilhelm Schäfer. “A Highly Integrated Tool Set for Program Development Support.”http://dx.doi.org/10.1145/62453.62454__In Proceedings of the Conference on ACM SIGSMALL/PC Symposium on ACTES (SIGSMALL 1988), Cannes (France), 1–10. New York, NY, USA: ACM Press, 1988.http://dx.doi.org/10.1145/62453.62454 .
LibreCat: /record/7818
DOI: http://dx.doi.org/10.1145/62453.62454

Engels, Gregor, Uwe Hohenstein, Leonore Neugebauer, Gunter Saake, and Hans-Dietrich Ehrich. “Konzeption Einer Integrierten Datenbank-Entwurfsumgebung.” In Proceedings of DBTA/SI Data Dictionaries Und Entwicklungswerkzeuge Für Datenbank-Anwendungen, Zürich, Switzerland, 151–57. Verlag der Fachvereine an den Schweiz. Hochschulen und Techniken, 1988.
LibreCat: /record/7819

Engels, Gregor, Uwe Hohenstein, Gunter Saake, and Hans-Dietrich Ehrich. “Auf Dem Weg Zu Einer Integrierten Datenbank-Entwurfsumgebung.” In Proceedings of the GI-Workshop on “Sprachspezifische Programmierumgebungen,” edited by Gregor Engels, Uwe Hohenstein, Gunter Saake, and Hans-D. Ehrich, 38–51. Darmstadt (Germany): G. Snelting, 1988.
LibreCat: /record/7820

Ebert, Jürgen, and Gregor Engels. Ein Konzept Zur Beschreibung von Software-Architekturen. EWH Koblenz, 1988.
LibreCat: /record/8186

Engels, Gregor, Thorsten Janning, and Wilhelm Schäfer. “Die Benutzerschnittstelle Einer Integrierten Modula-2 Programmentwicklungsumgebung.” In Proceedings of GI-Workshop Sprachspezifische Programmierumgebungen, Darmstadt, Germany, 1988.
LibreCat: /record/8258

Babai, László, Bettina Just, and Friedhelm Meyer auf der Heide. “On the Limits of Computations with the Floor Function.”https://doi.org/10.1016/0890-5401(88)90031-4__Information and Computation, 1988, 99–107.https://doi.org/10.1016/0890-5401(88)90031-4 .
LibreCat: /record/16763
DOI: 10.1016/0890-5401(88)90031-4

Meyer auf der Heide, Friedhelm. “Fast Algorithms for N-Dimensional Restrictions of Hard Problems.”https://doi.org/10.1145/44483.44490__Journal of the ACM (JACM), 1988, 740–47.https://doi.org/10.1145/44483.44490 .
LibreCat: /record/16764
DOI: 10.1145/44483.44490

Borodin, Allan, Faith E. Fich, Friedhelm Meyer auf der Heide, Eli Upfal, and Avi Wigderson. “A Tradeoff between Search and Update Time for the Implicit Dictionary Problem.”https://doi.org/10.1016/0304-3975(88)90018-7__Theoretical Computer Science, 1988, 57–68.https://doi.org/10.1016/0304-3975(88)90018-7 .
LibreCat: /record/16765
DOI: 10.1016/0304-3975(88)90018-7