@INPROCEEDINGS{
       Author = {Braun, H. and claffy, k. and Polyzos, G.}, 
       Title = {{A framework for flow-based accounting on the Internet}},
       BookTitle = {IEEE Singapore International Conference on Networks (SICON)},
       Publisher = {IEEE},
       Month = {Sep},
       Year = {1993},
       Keywords = {measurement methodology   passive data analysis}
}