@conference {Wen_01:Clustering,
	title = {Clustering User Queries of a Search Engine},
	booktitle = {WWW10, Hong Kong},
	year = {2001},
	month = {may},
	pdf = {http://rali.iro.umontreal.ca/rali/sites/default/files/publis/10.1.1.17.532.pdf},
	author = {J. Wen and Jian-Yun Nie and H. Zhang}
}
