@Incollection{,
	title = {L{\textquoteright}environnement, nouveau facteur de migrations~?~},
	author = {Gemenne, F.},
	editor = {Jaffrelot, C. and Lequesne, C.},
	booktitle = {L{\textquoteright}enjeu mondial~: les migrations},
	year = {2009},
	address = {Paris},
	publisher = {Presse de Sciences Po}
}