@techreport{gamma,
	author="Erich Gamma and Andr\'e Weinand and Rudolf Marty",
	title="ET++ -- An Object-Oriented Application Framework in C++",
	institution="Institut f{\"u}r Informatik, Zurich, Switzerland",
	year=1988 }
@book{essens,
	author="P.J.M.D. Essens and H. Doorne and C. Vijlbrief",
	title="ERICC: Opbouw en toepassing van de Command and Control Experimenteer-faciliteit",
	publisher="TNO Instituut voor Zintuigfysiologie",
	year=1989 }
@techreport{roberts87,
	author="William Roberts and Mel Slater and Kieron Drake and Antony Simmins and Allan Davison and Peter Williams",
	title="First Impressions of NeWS",
	institution="Department of Computer Science, Queen Mary College",
	year=1987 }
@techreport{roberts88,
	author="William Roberts and Mel Slater and Kieron Drake and Allan Davison and C.E. Hyde and P. Papageorgiou",
	title="NeWS and X, Beauty and the Beast?",
	institution="Department of Computer Science, Queen Mary College",
	year=1988 }
@book{post85ref,
	author="Adobe Systems Incorporated",
	title="PostScript Language Reference Manual",
	publisher="Addison Wesley Publishing Company",
	year=1985 }
@book{post85tut,
	author="Adobe Systems Incorporated",
	title="PostScript Language Tutorial and Cookbook",
	publisher="Addison Wesley Publishing Company",
	year=1985 }
@book{post88,
	author="Adobe Systems Incorporated and Glenn C. Reid",
	title="PostScript Language Program Design",
	publisher="Addison Wesley Publishing Company",
	year=1988 }
@book{news,
	author="Sun Microsystems",
	title="NeWS Technical Overview",
	publisher="Sun Microsystems, Inc",
	year=1988 }
@book{stroustrup,
	author="Bjarne Stroustrup",
	title="The C++ Programming Language",
	publisher = "University of Chicago Press",
	year=1987 }
@book{clocksin,
	author="W.F. Clocksin and C.S. Mellish",
	title="Programming in Prolog",
	publisher = "Springer-Verlag",
	year=1981 }
@techreport{hedrick,
	author="Charles L. Hedrick",
	title="Introduction to the Internet Protocols",
	institution="Computer Science Facilities Group, RUTGERS, The State University of New Jersey",
	year=1987 }
@article{andr87,
    Title = "{``Combining Language and Database Advances in an Object-Oriented Developemnt Environment''}",
    Author = "Timothy Andrews and Craig Harris",
    Journal = "SIGPLAN Notices",
    Volume = "22",
    Number = "12",
    Month  = dec,
    Year = 1987,
    Pages = "430--440" }
@article{Atki87,
    Title = "{``Types and Persistence in Database Programming Languages''}",
    Author = "Malcolm P. Atkinson and O. Peter Buneman",
    Journal = "ACM Computing Surveys",
    Volume = "19",
    Number = "2",
    Month =  "June",
    Year = 1987,
    Pages = "105--190" }
@article{bane87,
    Title = "{``Semantics and Implementation of Schema Evolution in Object-Oriented Databases''}",
    Author = "Jay Banerjee and Won Kim and Hyoung-Joo Kim and Henry F. Korth",
    Journal = "ACM SIGMOD Record",
    Volume = "16",
    Number = "3",
    Month =  dec,
    Year = 1987,
    Pages = "311--322" }
@inproceedings{kim-queries,
    Title = "{``Queries in Object-Oriented Databases''}",
    Author = "Jay Banerjee and Won Kim and Kyung-Chang Kim",
    Booktitle = "Proceedings of the 1988 IEEE Fourth International Conference on Data Engineering",
    Address = "Los Angeles, California",
    Month =  feb,
    Year = 1988,
    Pages = "31--38" }
@inproceedings{beech,
    Title = "{``Generalized Version Control in an Object-Oriented Database''}",
    Author = "David Beech and Brom Mahbod",
    Booktitle = "Proceedings of the 1988 IEEE Fourth International Conference on Data Engineering",
    Address = "Los Angeles, California",
    Month =  feb,
    Year = "1988",
    Pages = "14--22" }
@article{beech88,
    Title = "{``Intensional Concepts in an Object Database Model''}",
    Author = "David Beech",
    Journal = "SIGPLAN Notices",
    Volume = "23",
    Number = "11",
    Month =  "Nov",
    Year = 1988,
    Pages = "164--175" }
@article{avance,
    Title = "{``AVANCE:  An Object Management System''}",
    Author = "Anders Bjornerstedt and Stefan Britts",
    Journal = "SIGPLAN Notices",
    Volume = "23",
    Number = "11",
    Month =  "Nov",
    Year = 1988,
    Pages = "206--221" }
@inproceedings{bloom,
    Title = "{``Issues in the Design of Object-Oriented Database programming Languages''}",
    Author = "Toby Bloom and Stanley B. Zdonik",
    Booktitle = "Proceedings of the 1987 OOPSLA Conference",
    Address = "Los Angeles, California",
    Month = oct,
    Year = 1987,
    Pages = "441--451" }
@inproceedings{gras,
    Title = "{``GRAS:  A Non-Standard Data Base System within a Software Development Environment''}",
    Author = "Th. Brandes and C. Lewerentz",
    Booktitle = "Workshop on Software Engineering Environments for Programming-in-the-Large",
    Address = "Harwichport, MA",
    Month =  june,
    Year = 1985,
    Pages = "113--121" }
@inproceedings{chou86,
    Title = "{``A Unifying Framework for Version Control in a CAD Environment''}",
    Author = "Hong-Tai Chou and Won Kim",
    Booktitle = "Proceedings of the Twelfth International Conference on Very Large Data Bases",
    Address = "Kyoto, Japan",
    Month =  "August",
    Year = 1986,
    Pages = "336--344" }
@article{danforth,
    Title = "{``Type Theories and Object-Oriented Programming''}",
    Author = "Scott Danforth and Chris Tomlinson",
    Journal = "ACM Computing Surveys",
    Volume = "20",
    Number = "1",
    Month =  mar,
    Year = "1988",
    Pages = "29--72" }
@inproceedings{damokles,
    Author = "Klaus R. Dittrich and Willi Gotthard and Peter C. Lockemann",
    Title = "{``DAMOKLES-A Database System for Software Engineering Environments''}",
    Booktitle = "Proceedings of the IFIP International Workshop on Advanced Programming Environments",
    Address = "Trondheim, Norway",
    Month =  "June",
    Year = 1987,
    Pages = "353--371" }
@article{Ditt88,
    Title = "{``Version Support for Engineering Database Systems''}",
    Author = "Klaus R. Dittrich and Raymond A. Lorie",
    Journal = "IEEE Transactions on Software Engineering",
    Volume = "14",
    Number = "4",
    Month =  apr,
    Year = 1988,
    Pages = "429--437" }
@inproceedings{hitchcock,
    Title = "{``The Uses of Databases for Software Engineering''}",
    Author = "P. Hitchcock and A. W. Brown and R. Weedon and A. N. Earl and R. P. Whittington and D. S. Robinson",
    Booktitle = "Proceedings of the 5th British National Conference on Databases",
    Editor = "E. Oxborrow",
    Month = "July",
    Year = "1986",
    Pages = "55-70" }
@article{huds87,
    Title = "{``Object-Oriented Database Support for Software Environments''}",
    Author = "Scott E. Hudson and Roger King",
    Journal = "ACM SIGMOD Record",
    Volume = "16",
    Number = "3",
    Month =  "December",
    Year = 1987,
    Pages = "491--503" }
@article{cactis,
    Title = "{``The Cactis Project: Database Support for Software Environments''}",
    Author = "Scott E. Hudson and Roger King",
    Journal = "IEEE Transactions on Software Engineering",
    Volume = "14",
    Number = "6",
    Month =  jun,
    Year = 1988,
    Pages = "709--719" }
@article{katz84,
    Title = "{``Database Support for Versions and Alternatives of Large Design Files''}",
    Author = "Randy H. Katz and Tobin J. Lehman",
    Journal = "IEEE Transactions on Software Engineering",
    Volume = "SE-10",
    Number = "2",
    Month =  "March",
    Year = 1984,
    Pages = "191--200" }
@inproceedings{katz87,
    Title = "{``Managing Change in a Computer-Aided Design Database''}",
    Author = "R. H. Katz and E. Chang",
    booktitle = "Proceedings of the 13th International Conference on Very Large Data Bases",
    Address = "Brighton, England",
    Month =  sep,
    Year = 1987,
    Pages = "455--462" }
@article{kemp87,
    Title = "{``An Object-Oriented Data\-base System for Engineering Applications''}",
    Author = "Alfons Kemper and Peter C. Lockemann and Mechtild Wallrath",
    Journal = "ACM SIGMOD Record",
    Volume = "16",
    Number = "3",
    Month =  "December",
    Year = 1987,
    Pages = "299--310" }
@article{kim87,
    Title = "{``Composite Object Support in an Object-Oriented Database System''}",
    Author = "Won Kim and Jay Banerjee and Hong-Tai Chou and Jorge F. Garza and Darrell Woelk",
    Journal = "SIGPLAN Notices",
    Volume = "22",
    Number = "12",
    Month =  "December",
    Year = 1987,
    Pages = "118--125" }
@article{kim88,
    Title = "{``Integrating an Object-Oriented Programming System with a Database System''}",
    Author = "Won Kim and Nat Ballou Jay Banerjee and Hong-Tai Chou and Jorge F. Garza and Darrell Woelk",
    Journal = "SIGPLAN Notices",
    Volume = "23",
    Number = "11",
    Month =  "Nov",
    Year = 1988,
    Pages = "142--152" }
@inproceedings{klah86,
    Title = "{``A General Model for Version Management in Databases''}",
    Author = "Peter Klahold and Gunter Schlageter and Wolfgang Wilkes",
    Booktitle = "Proceedings of the Twelfth International Conference on Very Large Data Bases",
    Address = "Kyoto, Japan",
    Month =  "August",
    Year = 1986,
    Pages = "319--327" }
    Pages = "701--713" }
@incollection{maier,
    Author = "David Maier and Jacob Stein",
    Title = "{``Development and Implementation of an Object-Oriented DBMS''}",
    Booktitle = "Research Directions in Object-Oriented Programming",
    Editor = "Bruce Shriver and Peter Wegner",
    Publisher = "The MIT Press",
    Address = "Cambridge, MA",
    Year = "1987",
    Pages = "354--392" }
@inproceedings{rowe87,
    Title = "{``The POSTGRES Data Model''}",
    Author = "Lawrence A. Rowe and Michael R. Stonebraker",
    booktitle = "Proceedings of the 13th International Conference on Very Large Data Bases",
    Address = "Brighton, England",
    Month =  Sept,
    Year = 1987,
    Pages = "83--96" }
@inproceedings{rumbaugh,
    Title = "{``Relations as Semantic Constructs in an Object-Oriented Language''}",
    Author = "James Rumbaugh",
    Booktitle = "Proceedings of the 1987 OOPSLA Conference",
    Address = "Los Angeles, California",
    Month =  oct,
    Year = 1987,
    Pages = "466--481" }
@inproceedings{oops,
    Title = "{``OOPS---An Object Oriented Programming System with Integrated Data Management Facility''}",
    Author = "G. Schlageter and R. Unland and W. Wilkes and R. Zieschang and G. Maul and M. Nagl and R. Meyer",
    Booktitle = "Proceedings of the 1988 IEEE Fourth International Conference on Data Engineering",
    Address = "Los Angeles, California",
    Month =  feb,
    Year = 1988,
    Pages = "118--125" }
@inproceedings{sern87,
    Title = "{``Object-Oriented Specification of Databases: An Algebraic Approach''}",
    Author = "Amilcar Sernadas and Cristina Sernadas and {Hans-Dieter} Ehrich",
    booktitle = "Proceedings of the 13th International Conference on Very Large Data Bases",
    Address = "Brighton, England",
    Month =  sep,
    Year = 1987,
    Pages = "107--116" }
@article{smit87,
    Title = "{``Intermedia: A Case Study of the differences Between Relational and Object-Oriented Database Systems''}",
    Author = "Karen E. Smith and Stanley B. Zdonik",
    Journal = "SIGPLAN Notices",
    Volume = "22",
    Number = "12",
    Month =  dec,
    Year = 1987,
    Pages = "452--465" }
@inproceedings{zdon87,
    Author = "Stanley B. Zdonik",
    Title = "{``Version Management in an Object-Oriented Database''}",
    Booktitle = "Proceedings of the IFIP International Workshop on Advanced Programming Environments",
    Address = "Trondheim, Norway",
    Month = jun,
    Year = 1987,
    Pages = "405--422" }