@INPROCEEDINGS{
       Author = {Dimitropoulos, X. and Krioukov, D. and Riley, G. and claffy, k.}, 
       Title = {{Revealing the Autonomous System Taxonomy: The Machine Learning Approach}},
       BookTitle = {Passive and Active Network Measurement Workshop (PAM)},
       Institution = {Cooperative Association for Internet Data Analysis (CAIDA)},
       Month = {Mar},
       Year = {2006},
       Keywords = {topology}
}