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Ehrich, H. - D., G. Engels, M. Gogolla, G. Saake, and (eds), "Abstracts des Workshops "Grundlagen von Datenbanken"", Abstracts des Workshops "Grundlagen von Datenbanken": Informatik-Bericht Nr. 89-02, Technische Universität Braunschweig, 1989. Abstract
, Abstracts des Workshops ``Grundlagen von Datenbanken'', : Technische Universität Braunschweig, Informatik-Bericht 89-02, 1989. Abstract
Gogolla, M., "Algebraization and Integrity Constraints for an Extended Entity-Relationship Approach", Proc1 Theory and Practice of Software Developmen1 (TAPSOFT'89): Springer, Berlin, LNCS 351, pp. 259-274, 1989. Abstract
Hohenstein, U., "Automatic Transformation of an Entity-Relationship Query Language into SQL", Proc1 8th Int1 Conf1 on the Entity-Relationship Approach, pp. 309-327, 1989. Abstract
Ehrich, H. - D., A. Sernadas, and C. Sernadas, "Abstract Object Types for Databases", Advances in Object-Oriented Database Systems: LNCS 334, Springer, Berlin, 1988, pp. 144-149, 1988. Abstract  Download: 1988AbstrObjTypes.pdf (549.79 KB)
Engels, G., U. Hohenstein, G. Saake, and H. - D. Ehrich, "Auf dem Weg zu einer integrierten Datenbank-Entwurfsumgebung", Proc GI-Workshop ``Sprachspezifische Programmierumgebungen'', pp. 38-51, 1988. Abstract  Download: 1988DBEntwUmg2.pdf (564.82 KB)
Ehrich, H. - D., K. Drosten, M. Gogolla, U. Lipeck, and (eds), "Abstracts of the 4th Workshop on Specification of Abstract Data Types", Abstracts of the 4th Workshop on Specification of Abstract Data Types: Informatik-Bericht Nr. 86-09, Technische Universität Braunschweig, 1986. Abstract
, Abstracts of the 4th Workshop on Specification of Abstract Data Types, : Technische Universität Braunschweig, Informatik-Bericht 86-09, 1986. Abstract
Ehrich, H. - D., "Algebraic (?) specification of conceptual database schemata (extended abstract)", Recent Trends in Data Type Specification, Informatik-Fachberichte, vol. 116: Springer, 1985. Abstract  Download: 1985AlgSpecDB.pdf (349.23 KB)
Gogolla, M., K. Drosten, U. Lipeck, and H. - D. Ehrich, "Algebraic and operational semantics of exceptions and errors", Proc. 6. GI-Fachtagung für Theoretische Informatik: Springer LNCS 145, 1983. Abstract  Download: 1983ExceptErrors.pdf (198.63 KB)
Ehrich, H. - D., and U. Lipeck, "Algebraic domain equations", Theoretical Computer Science, vol. 27, pp. 167-196, 1983. Abstract  Download: 1983TCS-ADE.pdf (951.11 KB)
Ehrich, H. - D., "Algebraische Spezifikation von Datenstrukturen", Datenstrukturen, Graphen, Algorithmen.: Hanser Appl. Comp. Sc. 8, pp 48-61, 1978. Abstract  Download: 1978Graphen3.pdf (419.04 KB)
Ehrich, H. - D., "An Axiomatic Approach to Information Structures", Proc. 5th MFCS: Springer, LNCS 45, pp 277-283, 1976. Abstract  Download: 1976MFCS.pdf (364.21 KB)