Introduction to Object Oriented Databases by Roberto Zicari · Published January 1, 2000 · Updated February 16, 2014 Liam Quin Introduces to the basic concepts of object oriented databases. LINK (DOC)
006.01 Complex Object Structures May 1, 2005 by Roberto Zicari · Published May 1, 2005 · Last modified February 18, 2014
Simple Object Persistence with the db4o Object Database December 1, 2004 by Roberto Zicari · Published December 1, 2004 · Last modified February 18, 2014
Debunking Object-Database Myths October 1, 1997 by Roberto Zicari · Published October 1, 1997 · Last modified February 16, 2014