@booklet {malenfant89objvprologmodele,
	title = {{ObjVProlog}: un mod{\`e}le uniforme de m{\'e}taclasses, classes et instances adapt{\'e} {\`a} la programmation logique},
	number = {671},
	year = {1989},
	publisher = {D{\'e}partement d{\textquoteright}informatique et recherche op{\'e}rationnelle, Universit{\'e} de Montr{\'e}al},
	type = {Publication},
	author = {J. Malenfant and Guy Lapalme and Vaucher, J.}
}
