@TechReport{li01, 
author = {D. Li and P. Cao and M. Dahlin}, 
 title = {WCIP: Web Cache Invalidation Protocol}, 
 institution = {IETF}, 
 year = 2001 , 
 number = {draft-danli-wrec-wcip-01}, 
 month = March, 
 postscript = "http://www.ietf.org/internet-drafts/draft-danli-wrec-wcip-01.txt", 
 category = "webos,WANrepl" 
 }