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
Performance investigation into selected object persistence stores February 1, 2010 by Roberto Zicari · Published February 1, 2010 · Last modified February 18, 2014
Accelerating Application Development with Objects September 1, 2010 by Roberto Zicari · Published September 1, 2010 · Last modified February 16, 2014
Introduction to Object Oriented Databases January 1, 2000 by Roberto Zicari · Published January 1, 2000 · Last modified February 16, 2014