Objects and Databases by Roberto Zicari · Published January 1, 1993 · Updated February 24, 2014 Petr, Kroha, Objects and Databases, McGraw-Hill, 1993, ISBN 0077077903.
The Object Data Standard ODMG 3.0 November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 24, 2014
The Definitive Guide to MongoDB: The NoSQL Database for Cloud and Desktop Computing. November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 24, 2014