@INPROCEEDINGS{
       Author = {Lee, T. and Huffaker, B. and Fomenkov, M. and claffy, k.}, 
       Title = {{On the problem of optimization of DNS root servers' placement}},
       BookTitle = {Passive and Active Network Measurement Workshop (PAM)},
       Publisher = {PAM},
       Address = {San Diego, CA},
       Institution = {Cooperative Association for Internet Data Analysis (CAIDA)},
       Month = {Apr},
       Year = {2003},
       Keywords = {dns}
}