Java Data Objects by Roberto Zicari · Published November 3, 2013 · Updated February 24, 2014 D. Jordan, C. Russell, Java Data Objects, O’Reilly Media, 2003, ISBN 0596002769
Object Databases: The Essentials November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 24, 2014
Graph Databases February 25, 2013 by Roberto Zicari · Published February 25, 2013 · Last modified February 24, 2014
Secrets of Analysis May 27, 2017 by Roberto Zicari · Published May 27, 2017 · Last modified May 31, 2017