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)
A write-performance improvement of ZABBIX with NoSQL databases and HistoryGluon January 1, 2013 by Roberto Zicari · Published January 1, 2013 · Last modified February 16, 2014
A New Consensus Algorithm for TokuMX and MongoDB September 23, 2014 by Roberto Zicari · Published September 23, 2014 · Last modified September 24, 2014