Object Oriented Database Management Systems by Roberto Zicari · Published January 1, 2001 · Updated February 16, 2014 Dare Obasanjo This paper explores use cases for ODBMS and shows code examples. LINK
The Object-Oriented Database System Manifesto January 1, 1995 by Roberto Zicari · Published January 1, 1995 · Last modified July 11, 2014
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
Beyond Java ORM with Versant JPA (Part 1) March 1, 2008 by Roberto Zicari · Published March 1, 2008 · Last modified February 16, 2014