Ramaswamy Ramaswamy Ning Weng Tilman Wolf A Network Processor Based Passive Measurement Node. 337-340 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3431&spage=337 2005 conf/pam/2005 PAM db/conf/pam/pam2005.html#RamaswamyWW05