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)
027.01 Comparing the Performance of Object Databases and ORMs September 1, 2006 by Roberto Zicari · Published September 1, 2006 · Last modified February 18, 2014
Stack-Based Architecture and Stack-Based Query Language January 1, 2008 by Roberto Zicari · Published January 1, 2008 · Last modified February 19, 2014
Debunking Object-Database Myths October 1, 1997 by Roberto Zicari · Published October 1, 1997 · Last modified February 16, 2014