@book{MSM_1954__127__1_0, author = {Poli, L. and Delerue, P.}, title = {Le calcul symbolique \`a deux variables et ses applications}, series = {M\'emorial des sciences math\'ematiques}, publisher = {Gauthier-Villars}, number = {127}, year = {1954}, zbl = {0056.33201}, mrnumber = {64200}, language = {fr}, url = {http://archive.numdam.org/item/MSM_1954__127__1_0/} }