Using InterSystems Caché for Securely Storing Credit Card Data by Roberto Zicari · Published January 1, 2011 · Updated February 16, 2014 Andreas Dieckow, Principal Product Manager, InterSystems. DOWNLOAD (PDF)
The Technology and Business of ObjectStore January 1, 2007 by Roberto Zicari · Published January 1, 2007 · Last modified January 3, 2015
Beyond Java ORM with Versant JPA (Part 1) March 1, 2008 by Roberto Zicari · Published March 1, 2008 · Last modified February 16, 2014
Object Database vs. Object-Relational Databases January 1, 1997 by Roberto Zicari · Published January 1, 1997 · Last modified January 3, 2015