@INPROCEEDINGS{CleCreMonPenSil01,
  AUTHOR =       {A. Clementi and P. Crescenzi and A. Monti and P. Penna and R. Silvestri},
  TITLE =        {On Computing Ad-Hoc Selective Families},
  BOOKTITLE =    {Proc. of the 5th International Workshop on Randomization and Approximation Techniques in Computer Science (RANDOM)},
  YEAR =         {2001},
  series  =      {LNCS},
  volume =       {2129},
  pages=         {211-222}
}