Introduction to Object-Oriented Databases by Roberto Zicari · Published September 1, 1998 · Updated February 16, 2014 Steve Hand and Jane Chandler Very visual introduction to ODBMS. DOWNLOAD (PDF)
An Indexing Method for Handling Queries on Setvalued Attributes in ODBMS March 1, 2008 by Roberto Zicari · Published March 1, 2008 · Last modified February 16, 2014
The Object-Oriented Database System Manifesto January 1, 1995 by Roberto Zicari · Published January 1, 1995 · Last modified July 11, 2014
So you think you know JPA? Think again January 1, 2012 by Roberto Zicari · Published January 1, 2012 · Last modified February 16, 2014