@article{UZMU_1956_181_181_a17,
     author = {D. L. Lipatova and G. E. Dzhems-Levi},
     title = {Standardization of projective transformations},
     journal = {Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta},
     pages = {235--240},
     year = {1956},
     volume = {181},
     number = {181},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZMU_1956_181_181_a17/}
}