Bibtex Entry:

@inproceedings{gummadi2009not-a-bot,
   author =       "Ramakrishna Gummadi and Hari Balakrishnan and Petros Maniatis and Sylvia Ratnasamy",
   title =        "{Not-a-Bot (NAB): Improving Service Availability in the Face of Botnet Attacks}",
   booktitle =    {NSDI 2009},
   year =         {2009},
   month =        {April},
   address =      {Boston, MA}
}