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Conrad, S., G. Denker, M. Gogolla, R. Herzig, N. Vlachantonis, and H. - D. Ehrich, "Zur Entwicklung zuverlässiger Informationssysteme in KorSo", Informatik -- Wirtschaft -- Gesellschaft, Proc. 23. GI-Jahrestagung (GI'93): Springer, Informatik aktuell, pp. 464-469, 1993. Abstract  Download: 1993GI.pdf (401.19 KB)
Conrad, S., G. Denker, M. Gogolla, R. Herzig, N. Vlachantonis, and H. - D. Ehrich, "Entwicklung zuverlässiger Informationssysteme", EMISA Forum, Mitteilungen der GI-Fachgruppe 2.5.2, vol. 2, pp. 25-33, 1995. Abstract  Download: 1995EMISA.pdf (691.75 KB)
Conrad, S., and H. - D. Ehrich, "An Elementary Logic for Object Specification and Verification", Workshop Formale Grundlagen für den Entwurf von Informationssystemen, Tutzing: Technical Report Univ1 Hannover, No1 03/94, pp. 197-206, 1994. Abstract
Costa, J. - F., A. Sernadas, C. Sernadas, and H. - D. Ehrich, "Object Interaction", Mathematical Foundations of Computer Science (MFCS'92): Springer Verlag, pp. 200-208, 1992. Abstract  Download: 1992MFCS.pdf (56.77 KB)
Denker, G., and H. - D. Ehrich, "An Event-Based Semantics for Transactions", Proc. Intern. Workshop on Information Systems - Correctness and Reusability (IS-CORE'95), Technical Report, Evry, Sept. 1995: Universite d'Evry Val d'Essonne, Laboratoire de Mathematiques et d'Informatique, pp. 57-72, 1995. Abstract
Denker, G., and H. - D. Ehrich, "Specifying Distributed Information Systems: Fundamentals of an Object-Oriented Approach Using Distributed Temporal Logic", Formal Methods for Open Object-Based Distributed Systems (FMOODS'97), Volume 2, IFIP TC6 WG6.1 Intern.\ Workshop, 21-23 July, Canterbury, Kent, UK: Chapman & Hall, pp. 89-104, 1997. Abstract  Download: 1997DenkerEhrich.pdf (548.39 KB)
Denker, G., and H. - D. Ehrich, "Action Reification In Object Oriented Specification", Information Systems - Correctness and Reusability, Selected Papers from the IS-CORE Workshop: World Scientific, pp. 103-118, 1995. Abstract  Download: 1995ISCORE.pdf (1.04 MB)
Drawin, M., K. Neumann, and H. - D. Ehrich, "Regelorientierte Erzeugung von Karten-Entwürfen auf geowissenschaftlichen Datenbanken", Proc Datenbanksysteme in Büro, Technik und Wissenschaft: Informatik-Fachbericht 136, Springer, Berlin, pp. 231-246, 1987. Abstract  Download: 1987BTW.pdf (739.81 KB)
Drosten, K., and H. - D. Ehrich, "Translating algebraic specifications to PROLOG programs", Bericht Nr. 84-08, Institut für Informatik: TU Braunschweig, 1984. Abstract
Durchholz, R., and H. - D. Ehrich, "Proceedings", Workshop on Information and Data Structure Description, München, Bericht der GMD Nr. 139, 1983. Abstract
Ehrich, H. - D., K. Alber, G. Stiege, R. Vollmar, and D. Wätjen, "40 Jahre Informatik an der Technischen Universität Braunschweig 1972-2012", Lecture Notes in Informatics, vol. T-6, Bonn, Gesellschaft für Informatik, pp. 188, 2012.
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., "Ein axiomatischer Ansatz für eine Algebra strukturierter Objekte", Graphensprachen und Algorithmen auf Graphen: Hanser, Appl. Comp. Sc. 1, pages 143–161, 1976. Abstract  Download: 1976Graphen1.pdf (522.3 KB)
Ehrich, H. - D., M. Kollmann, and R. Pinger, "Checking Object System Designs Incrementally", Journal of Universal Computer Science, vol. 9, no. 2, pp. 106-119, February, 2003. Abstract  Download: 2003JUCS.pdf (167.55 KB)
Ehrich, H. - D., "Fundamentals of Object-Oriented Information Systems Specification and Design: The OBLOG/TROLL Approach", Nuclear Instruments and Methods in Physics Research A: Elsevier, Amsterdam, pp. 375-378, 1994. Abstract  Download: 1994CERN.pdf (280.86 KB)
Ehrich, H. - D., and K. Neumann, Datenbanksysteme II, , no. 34: Technische Universität Braunschweig, 1996. Abstract
Ehrich, H. - D., and V. G. Lohberger, "Constructing Specifications of Abstract Data Types by Replacements", Proc. Int. Colloquium on Graph Grammars: Springer LNCS 73, pp 180-191, 1978. Abstract  Download: 1978SpecReplace.pdf (214.4 KB)
Ehrich, H. - D., F. Lohmann, K. Neumann, and I. Ramm, "A Database Language for Scientific Map Data", Construction and Display of Geosientific Maps Derived from Databases (Proc. Int. Coll. Dinkelsbühl 1986): Geologisches Jahrbuch A 104, pp. 139-152, 1988. Abstract  Download: 1988Geo.pdf (905.2 KB)
Ehrich, H. - D., and R. Pinger, "Checking object systems via multiple observers", International ICSC Congress on Intelligent Systems & Applications (ISA'2000) , vol. 1: International Computer Science Conventions (ICSC), Canada, pp. 242-248, 2000. Abstract  Download: 2000ISA.pdf (112.72 KB)
Ehrich, H. - D., "Proving Implementations Correct - Two Alternative Approaches", IFIP Congress 1980: North-Holland Publ. Comp., 1980. Abstract  Download: 1980IFIP.pdf (384.86 KB)
Ehrich, H. - D., K. Drosten, and M. Gogolla, "Towards an Algebraic Semantics for Database Specification", Proc 2nd IFIP WG 2.6 Working Conf on Database Semantics ``Data and Knowledge'' (DS-2), Albufeira, Portugal, North-Holland, Amsterdam, pp. 119-135, 1988. Abstract  Download: 1988Albufeira.pdf (1.08 MB)
Ehrich, H. - D., and A. Sernadas, "Fundamental Object Concepts and Constructions", Information Systems - Correctness and Reusability: TU Braunschweig, Informatik Bericht 91-03, pp. 1-24, 1991. Abstract
Ehrich, H. - D., "Object Specification", Algebraic Foundations of Systems Specification: Springer, pp. 435-465, 1999. Abstract  Download: 1999ObjSpec.pdf (243.61 KB)
Ehrich, H. - D., K. - D. Schewe, and T. H. Tse(eds), "Special Issue Quality Software", Journal of Systems and Software, vol. 79, no. 5: Elsevier B.V., 2006. Abstract  Download:  2006editorialSpecIssueJSS.pdf (241.7 KB)
Ehrich, H. - D., "My ADT Shrine, invited lecture", Selected Papers from WADT 2010, Till Mossakowski and Hans-Jörg Kreowski, eds., Bremen, Springer LNCS 7137, pp. 13-24, 2012. Abstract  Download: 2012LNCS7137WADT10.pdf (498.99 KB)
Ehrich, H. - D., and A. Sernadas, "Algebraic Implementation of Objects over Objects", Proc REX Workshop ``Stepwise Refinement of Distributed Systems: Models, Formalisms, Correctness'': LNCS 430, Springer, Berlin, pp. 239-266, 1990. Abstract  Download: 1990AlgImplem.pdf (479.42 KB)
Ehrich, H. - D., C. Caleiro, A. Sernadas, and G. Denker, "Logics for Specifying Concurrent Information Systems", Logics for Databases and Information Systems: Kluwer Academic Publishers, pp. 167-198, 1998. Abstract  Download: 1998ECSD.pdf (255.81 KB)