@INPROCEEDINGS{
       Author = {Huffaker, B. and Fomenkov, M. and Plummer, D. and Moore, D. and claffy, k.}, 
       Title = {{Distance Metrics in the Internet}},
       BookTitle = {IEEE International Telecommunications Symposium (ITS)},
       Publisher = {IEEE},
       Pages = {200-202},
       Address = {Brazil},
       Month = {Sep},
       Year = {2002},
       Keywords = {active data analysis   topology}
}