@article{IVM_1971_8_a11,
     author = {O. P. Polyanskaya},
     title = {A~certain characterization of algebraic {hypersurfaces.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {94--102},
     publisher = {mathdoc},
     number = {8},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1971_8_a11/}
}