@phdthesis{THESE_1929__96__1_0,
     author = {Lain\'e, Edouard},
     title = {Recherches sur les \'equations $s = f(x,y,z,p,q)$ int\'egrables par la m\'ethode de {Darboux}},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {96},
     year = {1929},
     language = {fr},
     url = {http://www.numdam.org/item/THESE_1929__96__1_0/}
}