Welcome to Apache Cassandra 1.0. by Roberto Zicari · Published October 1, 2011 · Updated February 16, 2014 DataStax white paper for Architects, Developers and IT Managers. DOWNLOAD (PDF)
Optimizing MongoDB with Fractal Tree Indexes January 1, 2012 by Roberto Zicari · Published January 1, 2012 · Last modified April 8, 2014
Positioning CortexPlatform – Innovative NoSQL Platform for Analytical Services (PaaAS) July 28, 2015 by Roberto Zicari · Published July 28, 2015