@INPROCEEDINGS{PenVen08,
  AUTHOR =       {P. Penna and C. Ventre},
  TITLE =        {Collusion-Resistant Mechanisms with Verification Yielding Optimal Solutions},
  BOOKTITLE =    {16th Annual European Symposium on Algorithms (ESA)},
  YEAR =         {2008},
  series  =      {LNCS},
  volume =       {5193},
  pages=         {708-719}
}