RxO system. Simple semantic approach for representation complex objects data in table form.. by Roberto Zicari · Published September 1, 2011 · Updated February 16, 2014 Evgeniy Grigoriev, 2011 DOWNLOAD (PDF)
The Definite Guide to db4o June 1, 2006 by Roberto Zicari · Published June 1, 2006 · Last modified January 3, 2015
Simple Object Persistence with the db4o Object Database December 1, 2004 by Roberto Zicari · Published December 1, 2004 · 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