@INPROCEEDINGS{PenVen04wasun,
  AUTHOR =       {P. Penna and C. Ventre},
  TITLE =        {Energy-Efficient Broadcasting in Ad-Hoc Networks: 
  Combining MSTs with Shortest-Path Trees},
  BOOKTITLE =    {Proc. of the ACM Workshop on Performance Evaluation of Wireless Ad-Hoc, 
  Sensor, and Ubiquitous Networks (PE-WASUN)},
  YEAR =         {2004},
  publisher  =   {ACM Press},
  pages=         {61-68}
}