@book{MSM_1931__49__1_0,
     author = {Kryloff, Nicolas},
     title = {Les m\'ethodes de solution approch\'ee des probl\`emes de la physique math\'ematique},
     series = {M\'emorial des sciences math\'ematiques},
     publisher = {Gauthier-Villars},
     number = {49},
     year = {1931},
     zbl = {0002.04503},
     language = {fr},
     url = {http://archive.numdam.org/item/MSM_1931__49__1_0/}
}