Java and Databases by Roberto Zicari · Published May 1, 2004 · Updated February 16, 2014 Chris Smith, MindIQ Persistence strategies for Java; incl. EJB, Hibernate, JDO and db4o. DOWNLOAD (PDF) or (PPT)
Java Object Persistence February 19, 2014 by Roberto Zicari · Published February 19, 2014 · Last modified March 2, 2014
038.02 The JDO Object Model June 1, 2001 by Roberto Zicari · Published June 1, 2001 · Last modified February 18, 2014
Approaches to Adding Persistence to Java January 1, 1996 by Roberto Zicari · Published January 1, 1996 · Last modified February 19, 2014