@article{PIM_1936_Tom_V_a13,
     author = {Nicolas Saltykow},
     title = {Etude sur l' application des transformations de contact a l' integration d' equations differentielles},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {133 },
     publisher = {mathdoc},
     volume = {Tom_V},
     year = {1936},
     url = {http://geodesic.mathdoc.fr/item/PIM_1936_Tom_V_a13/}
}