006.03 ODBMS for RDBMS Users by Roberto Zicari · Published January 1, 2005 · Updated February 18, 2014 Rick Grehan A basic introduction to ODBMS for RDBMS users. DOWNLOAD (PDF)
The Definite Guide to db4o June 1, 2006 by Roberto Zicari · Published June 1, 2006 · Last modified January 3, 2015
Object-Oriented or Object-Relational? An Experience Report from a High-Complexity, Long-Term Case Study. July 1, 2010 by Roberto Zicari · Published July 1, 2010 · Last modified February 16, 2014
040.01 View Operations on Objects with Roles for a Statically Typed Database Language 1999 January 1, 1999 by Roberto Zicari · Published January 1, 1999 · Last modified February 18, 2014