@INPROCEEDINGS{PenVen04sirocco,
  AUTHOR =       {P. Penna and C. Ventre},
  TITLE =        {Sharing the Cost of Multicast Transmissions in Wireless Networks},
  BOOKTITLE =    {Proc. of the 11th Colloquium on Structural Information and Communication (SIROCCO)},
  YEAR =         {2004},
  volume =       {3104},
  series =       {LNCS},
  pages =        {255-266}
}