Multi-granularity Locks in an Object-Oriented Database by Roberto Zicari · Published January 1, 2006 · Updated February 18, 2014 Daniel F. Lieuwen, H.V. Jagadish, AT&T Bell Labs DOWNLOAD (PDF)
The Object-Oriented Database System Manifesto January 1, 1995 by Roberto Zicari · Published January 1, 1995 · Last modified July 11, 2014
Efficient Development of Event-Driven Systems with Versant Object Database September 1, 2010 by Roberto Zicari · Published September 1, 2010 · Last modified February 16, 2014
Unified Database Theory November 1, 2010 by Roberto Zicari · Published November 1, 2010 · Last modified February 16, 2014