@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},
     mrnumber = {64200},
     zbl = {0056.33201},
     language = {fr},
     url = {http://www.numdam.org/item/MSM_1954__127__1_0/}
}