@booklet {vaucher86poops,
	title = {Poops: an Object Oriented {Prolog}},
	number = {565},
	year = {1986},
	month = {mar},
	publisher = {D{\'e}partement d{\textquoteright}informatique et recherche op{\'e}rationnelle, Universit{\'e} de Montr{\'e}al},
	type = {Publication},
	author = {Vaucher, J. and Guy Lapalme}
}
