Roberto Baldoni Stefano Cimmino Carlo Marchetti Total Order Communications: A Practical Analysis. 38-54 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3463&spage=38 2005 conf/edcc/2005 EDCC db/conf/edcc/edcc2005.html#BaldoniCM05