@ARTICLE{
       Author = {Broido, A. and Shang, H. and Fomenkov, M. and Hyun, Y. and claffy, k.}, 
       Title = {{The Windows of Private DNS Updates}},
       Journal = {ACM SIGCOMM Computer Communication Review (CCR)}, 
       Volume = {36},
       Number = {3},
       Pages = {93-98},
       Month = {Jul},
       Year = {2006},
       Keywords = {dns   security   policy}
}