Maurizio A. Bonuccelli Alessandro Urpi Mesh of Trees Topology for Output Queued Switches: Trading Speed-up with a Pipeline Technique. 7-14 2005 8 Cluster Computing 1 http://www.springerlink.com/index/10.1007/s10586-004-4432-9 db/journals/cluster/cluster8.html#BonuccelliU05