@article{UZMU_1959_186_186_a16,
     author = {S. V. Smirnov},
     title = {Nomographing general integrals of first-order ordinary differential equations},
     journal = {Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta},
     pages = {245--248},
     publisher = {mathdoc},
     volume = {186},
     number = {186},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZMU_1959_186_186_a16/}
}