Object Databases: The Essentials by Roberto Zicari · Published November 3, 2013 · Updated February 24, 2014 M. Loomis, Object Databases: The Essentials, Addison-Wesley, 1994, ISBN 0-201-56341-2
Objects and Databases January 1, 1993 by Roberto Zicari · Published January 1, 1993 · Last modified February 24, 2014
Building on Multi-Model Databases: How to Manage Multiple Schemas on a Single Platform, August 18, 2017 by Roberto Zicari · Published August 18, 2017