Simple Object Persistence with the db4o Object Database by Roberto Zicari · Published December 1, 2004 · Updated February 18, 2014 Jim Paterson, Bell College Describes the use of the db4o object database. LINK
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
006.03 ODBMS for RDBMS Users January 1, 2005 by Roberto Zicari · Published January 1, 2005 · Last modified February 18, 2014