\begin{thebibliography}{}

\bibitem[\protect\citeauthoryear{Agrawal and Gehani}{1989}]{AgGh89b}
Agrawal, R. and Gehani, N.H.
\newblock Rationale for the design of persistence and query processing
  facilities in the database programming language {O++}.
\newblock In {\em Proceedings of the Second International Workshop on Database
  Programming Languages, Salishan, Oregon}, June 1989.

\bibitem[\protect\citeauthoryear{Appel}{1992}]{Appe92}
Appel, A.~W.
\newblock {\em Compiling with Continuations}.
\newblock Cambridge University Press, 1992.

\bibitem[\protect\citeauthoryear{B{\"o}ttcher \bgroup \em et al.\egroup
  }{1986}]{BJS86}
B{\"o}ttcher, S., Jarke, M., and Schmidt, J.W.
\newblock Adaptive predicate managers in database systems.
\newblock In {\em Proceedings of the Twelfth International Conference on Very
  Large Databases, Kyoto, Japan}, 1986.

\bibitem[\protect\citeauthoryear{Breazu-Tannen \bgroup \em et al.\egroup
  }{1991}]{BTBN91}
Breazu-Tannen, V., Buneman, P., and Naqvi, S.
\newblock Structural recursion as a query language.
\newblock In {\em Proceedings of the Third International Workshop on Database
  Programming Languages, Nafplion, Greece}. Morgan Kaufmann Publishers,
  September 1991.

\bibitem[\protect\citeauthoryear{Catell}{1994}]{Cate94}
Catell, R.G.G., editor.
\newblock {\em The Object Database Standard: ODMG-93}.
\newblock Morgan Kaufmann Publishers, 1994.

\bibitem[\protect\citeauthoryear{Eder \bgroup \em et al.\egroup
  }{1991}]{ERMS91}
Eder, J., Rudloff, A., Matthes, F., and Schmidt, J.W.
\newblock Data construction with recursive set expressions in {DBPL}.
\newblock In {\em Proceedings of the Kiev East/West Workshop on Next Generation
  Database Technology}, volume 504 of {\em Lecture Notes in Computer Science},
  April 1991.

\bibitem[\protect\citeauthoryear{Fegaras}{1994}]{Fega94}
Fegaras, L.
\newblock Efficient optimization of iterative queries.
\newblock In Beeri, C., Ohori, A., and Shasha, D.E., editors, {\em Database
  Programming Languages, New York City, 1993}, Workshops in Computing, pages
  200--225, 1994.

\bibitem[\protect\citeauthoryear{Freytag and Goodman}{1989}]{FrGo89}
Freytag, J.C. and Goodman, N.
\newblock On the translation of relational queries into iterative programs.
\newblock {\em ACM Transactions on Database Systems}, 14(1), March 1989.

\bibitem[\protect\citeauthoryear{Gawecki and Matthes}{1994}]{GaMa94}
Gawecki, A. and Matthes, F.
\newblock The {Tycoon} {Machine} {Language} {TML} - an optimizable persistent
  program representation.
\newblock FIDE Technical Report FIDE/94/100, Fachbereich Informatik,
  Universit\"at Hamburg, Germany, July 1994.

\bibitem[\protect\citeauthoryear{Gawecki}{1992}]{Gawe92a}
Gawecki, A.
\newblock An optimizing compiler for {Smalltalk}.
\newblock Bericht FBI-HH-B-152/92, Fachbereich Informatik, Universit\"at
  Hamburg, Germany, September 1992.
\newblock In German.

\bibitem[\protect\citeauthoryear{Gifford and Lucassen}{1986}]{GiLu86}
Gifford, David~K. and Lucassen, John~M.
\newblock Integrating functional and imperative programming.
\newblock In {\em Proceedings of the ACM Conference on Lisp and Functional
  Programming, Cambridge, Massachusetts, August 4-6, 1986}, pages 28--38, 1986.

\bibitem[\protect\citeauthoryear{Jarke and Koch}{1984}]{JaKo84}
Jarke, M. and Koch, J.
\newblock Query optimization in database systems.
\newblock {\em ACM Computing Surveys}, 16(2):111--152, 1984.

\bibitem[\protect\citeauthoryear{Jarke and Schmidt}{1982}]{JaSc82b}
Jarke, M. and Schmidt, J.W.
\newblock Query processing strategies in the {Pascal/R} relational database
  management system.
\newblock In {\em Proceedings of the ACM-SIGMOD International Conference on
  Management of Data}, 1982.

\bibitem[\protect\citeauthoryear{Jarke \bgroup \em et al.\egroup
  }{1982}]{JKMS82}
Jarke, M., Koch, J., Mall, M., and Schmidt, J.W.
\newblock Query optimization research in the database programming languages
  {(DBPL)} project.
\newblock {\em IEEE -- Data Engineering}, pages 11--14, September 1982.

\bibitem[\protect\citeauthoryear{Kelsey}{1989}]{Kels89}
Kelsey, R.A.
\newblock Compilation by program transformation.
\newblock Technical report, Yale University, Department of Computer Science,
  May 1989.

\bibitem[\protect\citeauthoryear{Kiradjiev}{1994}]{Kira94}
Kiradjiev, P.
\newblock {Dynamische} {Optimierung} in {CPS-orientierten} {Zwischensprachen}.
\newblock Diplomarbeit, Fachbereich Informatik, Universit\"at Hamburg, Germany,
  December 1994.

\bibitem[\protect\citeauthoryear{Kranz \bgroup \em et al.\egroup
  }{1986}]{KKRHPA86}
Kranz, D., Kelsey, R., Rees, J., Hudak, P., Philbin, J., and Adams, N.
\newblock {ORBIT:} an optimizing compiler for {Scheme}.
\newblock {\em ACM SIGPLAN Notices}, 21(7):219--233, July 1986.

\bibitem[\protect\citeauthoryear{Lieuwen and DeWitt}{1991}]{LiDeW91}
Lieuwen, Daniel~F. and DeWitt, David~J.
\newblock Optimizing loops in database programming languages.
\newblock In {\em Proceedings of the Third International Workshop on Database
  Programming Languages, Nafplion, Greece}, Nafplion, Greece, September 1991.
  Morgan Kaufmann Publishers.

\bibitem[\protect\citeauthoryear{Mall \bgroup \em et al.\egroup }{1984}]{MRS84}
Mall, M., Reimer, M., and Schmidt, J.W.
\newblock Data selection, sharing and access control in a relational scenario.
\newblock In Brodie, M.L., Myopoulos, J.L., and Schmidt, J.W., editors, {\em On
  Conceptual Modelling}. Springer-Verlag, 1984.

\bibitem[\protect\citeauthoryear{Mathiske \bgroup \em et al.\egroup
  }{1995}]{MMS95b}
Mathiske, B., Matthes, F., and Schmidt, J.W.
\newblock Scaling database languages to higher-order distributed programming.
\newblock In {\em Proceedings of the Fifth International Workshop on Database
  Programming Languages, Gubbio, Italy}. Springer-Verlag, September 1995.
\newblock (Also appeared as TR FIDE/95/137).

\bibitem[\protect\citeauthoryear{Matthes and Schmidt}{1991}]{MaSc91b}
Matthes, F. and Schmidt, J.W.
\newblock Bulk types: Built-in or add-on?
\newblock In {\em Proceedings of the Third International Workshop on Database
  Programming Languages, Nafplion, Greece}. Morgan Kaufmann Publishers,
  September 1991.

\bibitem[\protect\citeauthoryear{Matthes and Schmidt}{1992}]{MaSc92a}
Matthes, F. and Schmidt, J.W.
\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[\protect\citeauthoryear{Matthes and Schmidt}{1994}]{MaSc94}
Matthes, F. and Schmidt, J.W.
\newblock Persistent threads.
\newblock In {\em Proceedings of the Twentieth International Conference on Very
  Large Data Bases, VLDB}, pages 403--414, Santiago, Chile, September 1994.

\bibitem[\protect\citeauthoryear{Poulovassilis and Small}{1994}]{PoSm94}
Poulovassilis, A. and Small, C.
\newblock Investigation of algebraic query optimisation for database
  programming languages.
\newblock In {\em Proceedings of the 20th International Conference on Very
  Large Databases, Santiago, Chile}, September 1994.

\bibitem[\protect\citeauthoryear{Rudloff \bgroup \em et al.\egroup
  }{1995}]{RMS95}
Rudloff, A., Matthes, F., and Schmidt, J.W.
\newblock Security as an add-on quality in persistent object systems.
\newblock In {\em Second International East/West Database Workshop}, Workshops
  in Computing. Springer-Verlag, 1995.
\newblock (to appear).

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

\bibitem[\protect\citeauthoryear{Schmidt}{1977}]{Schm77a}
Schmidt, J.W.
\newblock Some high level language constructs for data of type relation.
\newblock In {\em Proceedings of the ACM-SIGMOD International Conference on
  Management of Data, Toronto, Canada}, August 1977.

\bibitem[\protect\citeauthoryear{Steele}{1978}]{Stee78}
Steele, Guy~L.
\newblock Rabbit: A compiler for {SCHEME}.
\newblock Technical report, Massachusetts Institute of Technology, May 1978.

\bibitem[\protect\citeauthoryear{Steele}{1986}]{Stee86}
Steele, Guy~L.
\newblock The revised$^3$ report on the algorithmic language {Scheme}.
\newblock {\em ACM SIGPLAN Notices}, 21(12):37--79, December 1986.

\bibitem[\protect\citeauthoryear{Teodosiu}{1991}]{Teod91}
Teodosiu, Dan.
\newblock Hare: An optimizing portable compiler for {Scheme}.
\newblock {\em ACM SIGPLAN Notices}, 26(1):109--120, January 1991.

\bibitem[\protect\citeauthoryear{Trinder}{1991}]{Trind91}
Trinder, P.
\newblock Comprehensions, a query notation for {DBPLs}.
\newblock In {\em Proceedings of the Third International Workshop on Database
  Programming Languages, Nafplion, Greece}. Morgan Kaufmann Publishers,
  September 1991.

\bibitem[\protect\citeauthoryear{Ullman}{1989}]{Ullm89}
Ullman, J.D.
\newblock {\em Database and Knowledge-Base Systems, vol. 2}.
\newblock Computer Science Press, 1989.

\end{thebibliography}