\begin{thebibliography}{10}

\bibitem{ABGO93b}
A.~Albano, G.~Bergamini, G.~Ghelli, and R.~Orsini.
\newblock An object data model with roles.
\newblock In {\em Proceedings of the Nineteenth International Conference on
  Very Large Databases, Dublin, Ireland}, pages 39--51, 1993.

\bibitem{ABGO93}
A.~Albano, R.~Bergamini, G.~Ghelli, and R.~Orsini.
\newblock An introduction to the database programming language {Fibonacci}.
\newblock FIDE Technical Report Series FIDE/92/64, FIDE Project Coordinator,
  Department of Computing Sciences, University of Glasgow, Glasgow G128QQ,
  1993.

\bibitem{ABDGOR94}
A.~Albano, C.~Brasini, M.~Diotallevi, G.~Ghelli, R.~Orsini, and R.~Rossi.
\newblock A guided tour of the {Fibonacci} system.
\newblock FIDE Technical Report Series FIDE/94/103, FIDE Project Coordinator,
  Department of Computing Sciences, University of Glasgow, Glasgow G128QQ, July
  1994.

\bibitem{AGO94}
A.~Albano, G.~Ghelli, and R.~Orsini.
\newblock Fibonacci reference manual: A preliminary version.
\newblock FIDE Technical Report Series FIDE/94/102, FIDE Project Coordinator,
  Department of Computing Sciences, University of Glasgow, Glasgow G128QQ,
  1994.

\bibitem{ACCP89}
L.~Alfo, S.~Coluccini, P.~Corte, and D.~Presenza.
\newblock Manuale del sistema sidereus.
\newblock Technical report, Dipartimento di Informatica, Universit\`a di Pisa,
  Italy, 1989.

\bibitem{AtBu86}
M.P. Atkinson and P.~Bunemann.
\newblock Types and persistence in database programming languages.
\newblock {\em ACM Computing Surveys}, 19(2), June 1987.

\bibitem{BeTa94}
C.~Beeri and P.~Ta-Shma.
\newblock Bulk data types, a theoretical approach.
\newblock In C.~Beeri, A.~Ohori, and D.E. Shasha, editors, {\em Proceedings of
  the Fourth International Workshop on Database Programming Languages,
  Manhatten, New York}, Workshops in Computing. Springer-Verlag, February 1994.

\bibitem{BMSW89}
A.~Borgida, J.~Mylopoulos, J.W. Schmidt, and I.~Wetzel.
\newblock Support for data-intensive applications: Conceptual design and
  software development.
\newblock In {\em Proceedings of the Second International Workshop on Database
  Programming Languages, Portland, Oregon}, June 1989.

\bibitem{CMA94}
L.~Cardelli, F.~Matthes, and M.~Abadi.
\newblock Extensible grammars for language specialization.
\newblock In C.~Beeri, A.~Ohori, and D.E. Shasha, editors, {\em Proceedings of
  the Fourth International Workshop on Database Programming Languages,
  Manhatten, New York}, Workshops in Computing, pages 11--31. Springer-Verlag,
  February 1994.

\bibitem{CMA94a}
L.~Cardelli, F.~Matthes, and M.~Abadi.
\newblock Extensible syntax with lexical scoping.
\newblock Technical Report 121, Digital Equipment Corporation, Systems Research
  Center, Palo Alto, California, February 1994.

\bibitem{GaMa95a}
A.~Gawecki and F.~Matthes.
\newblock Tool: A persistent language integrating subtyping, matching and type
  quantification.
\newblock FIDE Technical Report Series FIDE/95/135, FIDE Project Coordinator,
  Department of Computing Sciences, University of Glasgow, Glasgow G128QQ,
  1995.

\bibitem{MaSc91b}
F.~Matthes and J.W. Schmidt.
\newblock Bulk types: Built-in or add-on?
\newblock In {\em Database Programming Languages: Bulk Types and Persistent
  Data}. Morgan Kaufmann Publishers, September 1991.

\bibitem{MaSc92a}
F.~Matthes and J.W. Schmidt.
\newblock Definition of the {Tycoon} language {TL} -- a preliminary report.
\newblock Informatik Fachbericht FBI-HH-B-160/92, Fachbereich Informatik,
  Universit\"at Hamburg, Germany, November 1992.

\bibitem{Nied92}
C.~Nieder\'ee.
\newblock Generic services for data-intensive applications: Iteration
  abstraction, integrity checking and recovery.
\newblock Master's thesis, Fachbereich Informatik, Universit\"at Hamburg,
  Germany, November 1992.
\newblock (In German).

\bibitem{SSW92}
K.-D. Schewe, J.W. Schmidt, and I.~Wetzel.
\newblock Identification, genericity and consistency in object-oriented
  databases.
\newblock In J.~Biskup and R.~Hull, editors, {\em Proceedings of the
  International Conference on Database Theory}, volume 646 of {\em Lecture
  Notes in Computer Science}, pages 341--356. Springer-Verlag, October 1992.

\bibitem{ScMa94}
J.W. Schmidt and F.~Matthes.
\newblock The {DBPL} project: Advances in modular database programming.
\newblock {\em Information Systems}, 19(2):121--140, 1994.

\bibitem{Ston90}
M.~Stonebraker.
\newblock Special issue on database prototype systems.
\newblock {\em IEEE Transactions on Knowledge and Data Engineering}, 2(1),
  March 1990.

\bibitem{Trind91}
P.~Trinder.
\newblock Comprehensions, a query notation for {DBPLs}.
\newblock In {\em Database Programming Languages: Bulk Types and Persistent
  Data}. Morgan Kaufmann Publishers, September 1991.

\end{thebibliography}