@InProceedings{Amato99a,
  author =       "Amato, Giuseppe and Straccia, Umberto",
  title =        "User Profile and Applications to Digital Libraries",  
  booktitle =    "Proceedings of the Third European Conference on
                  Research and Advanced Technology for Digital
                  Libraries",
  publisher =    SV,
  series =       LNCS,
  number =       "1696",
  pages  = "184--197",  
  YEAR	="1999"
}