@TECHREPORT{
       Author = {Estan, C. and Keys, K. and Moore, D. and Varghese, G.}, 
       Title = {{Building a Better NetFlow: Technical Report}},
       Institution = {Cooperative Association for Internet Data Analysis (CAIDA)},
       Month = {Jun},
       Year = {2004},
       Keywords = {measurement methodology   software/tools}
}