@misc{Harchol-BalterCrovella:patent01,
  author	= {Harchol-Balter, Mor and Crovella, Mark E.},
  title		= {Method and Apparatus for Assigning Tasks in a Distributed Server System},
  howpublished	= {US Patent Number 6,223,205, issued April 2001},
  URL		= {http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6223205},
  year		= {2001}
}