1. An overview of the J2EE architecture,
http://java.sun.com/j2ee/overview3.html
2. An overview of the .NET architecture,
http://msdn.microsoft.com/netframework/technologyinfo/overview/default.aspx
3. Koch, B., Schunke, T., Dearle, A., Vaughan, F., Marlin, C., Fazakerley, R., Barter, C.: Cache coherency and storage management in a persistent object system. In: Proceedings of the Fourth International Workshop on Persistent Object Systems, Martha’s Vineyard, MA (USA), pp. 99–109 (1990)
4. Overviews of Object Relational mapping and persistency tools available for Java,
http://c2.com/cgi/wiki?ObjectRelationalToolComparison
and
http://www.cetus-links.org/oo_db_java.html
5. Salah-Eddine Machani. Events in an Active Object-Relational Database System (1996),
http://www.masi.uvsq.fr/rapports/1996/