@inbook {Nie_04:Mod_les,
	title = {Mod{\`e}les probabilistes en recherche d{\textquoteright}information, dans Les syst{\`e}mes de recherche d{\textquoteright}informations},
	year = {2004},
	pages = {55-76},
	publisher = {ed. M. Ihadjadene, Hermes},
	organization = {ed. M. Ihadjadene, Hermes},
	chapter = {Mod{\`e}les conceptuels},
	author = {Jian-Yun Nie and J. Savoy}
}
