@ARTICLE{
       Author = {Castro, S. and Wessels, D. and Fomenkov, M. and claffy, k.}, 
       Title = {{A Day at the Root of the Internet}},
       Journal = {ACM SIGCOMM Computer Communication Review (CCR)}, 
       Publisher = {CCR 2008},
       Volume = {38},
       Number = {5},
       Pages = {41-46},
       Address = {New York, NY},
       Institution = {Cooperative Association for Internet Data Analysis (CAIDA)},
       Month = {Oct},
       Year = {2008},
       Keywords = {dns   routing   topology}
}