@InProceedings{KimPesAmiGal08,
  title =	{An Extension of PLSA for Document Clustering},
  author =	{Young-Min Kim, Jean-François Pessiot, Massih-Reza Amini and Patrick Gallinari},
  publisher =	{ACM},
  year = 	{2008},
  booktitle =	{Proceedings of the 17tt Annual International ACM Conference on Information and Knowledge Management}
}