@inbook {Nie_98:Toward,
	title = {Toward a broader model for information retrieval},
	year = {1998},
	pages = {17-38},
	publisher = {eds. M. Lalmas, F. Crestani, C.J. van Rijsbergen, Kluwer Academic Publishers},
	organization = {eds. M. Lalmas, F. Crestani, C.J. van Rijsbergen, Kluwer Academic Publishers},
	chapter = {Information Retrieval, Uncertainty and Logics},
	pdf = {http://rali.iro.umontreal.ca/rali/sites/default/files/publis/IRbook98.ps},
	author = {Jian-Yun Nie and F. Lepage}
}
