Bibtex Entry:

@inproceedings{chen2001span,
   author =       "Benjie Chen and Kyle Jamieson and Hari Balakrishnan and Robert Morris",
   title =        "{Span: An Energy-Efficient Coordination Algorithm for Topology Maintenance in Ad Hoc Wireless Networks}",
   booktitle =    {7th ACM MOBICOM},
   year =         {2001},
   month =        {July},
   address =      {Rome, Italy}
}