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
European Space Agency: Charting the Galaxy with the GAIA satellite and InterSystems Caché. February 1, 2011 by Roberto Zicari · Published February 1, 2011 · Last modified February 16, 2014
Optimizing Loops in Database Programming Languages January 1, 1991 by Roberto Zicari · Published January 1, 1991 · Last modified February 18, 2014
Unified Database Theory November 1, 2010 by Roberto Zicari · Published November 1, 2010 · Last modified February 16, 2014