@inproceedings{Sha99,
  author = {Sha, F. and Gardarin, G.},
  booktitle = {Actes des 15�mes journ�es Bases de Donn�es Avanc�es (BDA'99)},
  interhash = {e1e359160f6e6e2d3a270a5d6f44cff9},
  intrahash = {f58ec8e0f6ed357880d4092e56cd3e0b},
  month = {Octobre},
  pages = {305--321},
  title = {Gradual clustering algorithms for metric spaces},
  year = 1999
}