@INPROCEEDINGS{
       Author = {Huffaker, B. and Plummer, D. and Moore, D. and claffy, k.}, 
       Title = {{Topology discovery by active probing}},
       BookTitle = {Symposium on Applications and the Internet (SAINT)},
       Pages = {90-96},
       Month = {Jan},
       Year = {2002},
       Keywords = {topology   active data analysis}
}