\newcommand{\etalchar}[1]{$^{#1}$}
\begin{thebibliography}{DCBM89}

\bibitem[AGO91]{AGO91}
A.~Albano, G.~Ghelli, and R.~Orsini.
\newblock A Relationship Mechanism for a Strongly Typed Object-Oriented
  Database Programming Language.
\newblock In {\em Proceedings of the Seventeenth International Conference on
  Very Large Databases}, pages 565--575, 1991.

\bibitem[AM85]{AtMo85a}
M.P. Atkinson and R.~Morrison.
\newblock First class persistent procedures.
\newblock {\em ACM Transactions on Programming Languages and Systems}, 7(4),
  October 1985.

\bibitem[App92]{App92}
A.~Appel.
\newblock {\em Compiling with Continuations}.
\newblock Cambridge University Press, 1992.

\bibitem[BDK92]{BDK92}
F.~Bancilhon, C.~Delobel, and P.~Kanellakis.
\newblock {\em Building an Object-Oriented Database System: The Story of
  O$_{2}$}.
\newblock Morgan Kaufmann Publishers, 1992.

\bibitem[BDS{\etalchar{+}}93]{BDSSW93}
Y.~Breibart, A.~Deacon, H.-J. Schek, A.~Sheth, and G.~Weikum.
\newblock Merging Application-centric and Data-centric Approaches to Support
  Transaction-oriented Multi-system Workflows.
\newblock {\em ACM SIGMOD Record}, 12(3):23--30, September 1993.

\bibitem[BK91]{BaKa91}
N.S. Barghouti and G.E. Kaiser.
\newblock Concurrency control in advanced database applications.
\newblock {\em ACM Computing Surveys}, 23(3):269--317, September 1991.

\bibitem[BMS93]{BMS93}
A.~Borgida, J.~Mylopoulos, and J.~Schmidt.
\newblock The TaxisDL Software Description Language.
\newblock In M.~Jarke, editor, {\em Database Application Engineering with
  {DAIDA}}, pages 65--84. Springer-Verlag, 1993.

\bibitem[DCBM89]{DCBM89}
A.~Dearle, R.~Connor, F.~Brown, and R.~Morrison.
\newblock {Napier88} -- A Database Programming Language?
\newblock In {\em Proceedings of the Second International Workshop on Database
  Programming Languages, Portland, Oregon}, June 1989.

\bibitem[GBM94]{GMM94}
A.~Gawecki, Mathiske. B., and F.~Matthes.
\newblock The Tycoon Machine Language TML: An Optimizable Persistent Program
  Representation.
\newblock DBIS Tycoon Report 103-94, Fachbereich Informatik, Universit\"at
  Hamburg, Germany, March 1994.

\bibitem[GMS87]{GMS87}
H.~Garcia-Molina and K.~Salem.
\newblock Sagas.
\newblock In {\em Proceedings of the ACM-SIGMOD International Conference on
  Management of Data, San Francisco, California}, pages 249--259, May 1987.

\bibitem[GR93]{GrRe93}
J.~Gray and A.~Reuter.
\newblock {\em Transaction Processing -- Concepts and Techniques}.
\newblock The Morgan Kaufmann Series in Data Management Systems. Morgan
  Kaufmann Publishers, 1993.

\bibitem[Mat93]{Matt93}
F.~Matthes.
\newblock {\em Persistente Objektsysteme: Integrierte Datenbankentwicklung und
  Programmerstellung}.
\newblock Springer-Verlag, 1993.
\newblock (In German.).

\bibitem[MMS92]{MMS92}
F.~Matthes, R.~M{\"u}ller, and J.W. Schmidt.
\newblock Object Stores as Servers in Persistent Programming Environments --
  The P-Quest Experience.
\newblock FIDE Technical Report Series FIDE/92/48, FIDE Project Coordinator,
  Department of Computing Sciences, University of Glasgow, Glasgow G128QQ, July
  1992.

\bibitem[MS91]{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[MS92]{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[MS93]{MaSc93b}
F.~Matthes and J.W. Schmidt.
\newblock System Construction in the Tycoon Environment: Architectures,
  Interfaces and Gateways.
\newblock In P.P. Spies, editor, {\em Proceedings of Euro-Arch'93 Congress},
  pages 301--317. Springer-Verlag, October 1993.

\bibitem[Nel91]{Nels91}
G.~Nelson, editor.
\newblock {\em Systems programming with Modula-3}.
\newblock Series in innovative technology. Prentice Hall, Englewood Cliffs, New
  Jersey, 1991.

\bibitem[OSF93]{DCE93}
OSF.
\newblock {\em OSF DCE Administration Guide -- Core Components}.
\newblock Prentice Hall, Englewood Cliffs, New Jersey, 1993.

\bibitem[Plo81]{Plot81}
G.D. Plotkin.
\newblock A structural appraoch to operational semantics.
\newblock DIAMI FN~19, Computer Science Department, Aarhus University, 1981.

\bibitem[POS90]{POSIX}
Portable Operating System Interface for Computer Environments (POSIX).
\newblock Federal information processing standards publication
  NBS-FIPS-PUB-151-1, National Bureau of Standards, 1990.

\bibitem[RCS93]{RCS93}
J.E. Richardson, M.~J. Carey, and D.T Schuh.
\newblock The design of the E Programming Language.
\newblock {\em ACM Transactions on Programming Languages and Systems},
  15(3):494--534, July 1993.

\bibitem[Reu89]{Reut89}
A.~Reuter.
\newblock {ConTracts}: A Means for Extending Control Beyond Transaction
  Boundaries.
\newblock In {\em Third International Workshop on High Performance Transaction
  Systems}, 1989.

\bibitem[SM93]{ScMa93}
J.W. Schmidt and F.~Matthes.
\newblock Lean Languages and Models: Towards an Interoperable Kernel for
  Persistent Object Systems.
\newblock In {\em Proceedings of the IEEE International Workshop on Research
  Issues in Data Engineering}, pages 2--16, April 1993.

\bibitem[SM94]{ScMa94}
J.W. Schmidt and F.~Matthes.
\newblock The DBPL Project: Advances in Modular Database Programming.
\newblock (to appear in Jounal 'Information Systems'), 1994.

\bibitem[SMR{\etalchar{+}}93]{SMRS93}
K.~Subieta, F.~Matthes, A.~Rudloff, J.W. Schmidt, and I.~Wetzel.
\newblock Viewers: A Data-World Analogue of Procedure Calls.
\newblock In {\em Proceedings of the Nineteenth International Conference on
  Very Large Databases, Dublin, Ireland}, August 1993.

\bibitem[Str67]{Stra67}
C.~Strachey, editor.
\newblock {\em Fundamental concepts in programming languages}.
\newblock Oxford University Press, Oxford, 1967.

\bibitem[Swe93]{Swen93}
K.D. Swenson.
\newblock Visual Support for Reengineering Work Processes.
\newblock In {\em Proceedings of the Conference on Organizational Computing
  Systems, COOCS'93}. ACM Press, 1993.

\bibitem[Tur93]{Turn93}
K.~Turner, editor.
\newblock {\em Using Formal Description Techniques, An Introduction to Estelle,
  Lotos and SDL}.
\newblock Wiley series in communication and distributed systems. John Wiley \&
  Sons, 1993.

\end{thebibliography}