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)
Oscillating Between Objects and Relational: The Impedance Mismatch January 1, 2002 by Roberto Zicari · Published January 1, 2002 · Last modified February 16, 2014
The Object-Relational Impedance Mismatch January 1, 2002 by Roberto Zicari · Published January 1, 2002 · Last modified February 18, 2014