@book{MSM_1951__117__1_0,
     author = {Popoff, Kyrille},
     title = {Le mouvement d'un projectile autour de son centre de gravit\'e},
     series = {M\'emorial des sciences math\'ematiques},
     publisher = {Gauthier-Villars},
     number = {117},
     year = {1951},
     mrnumber = {48979},
     zbl = {0043.18405},
     language = {fr},
     url = {http://www.numdam.org/item/MSM_1951__117__1_0/}
}