@article{DAN_1977_234_4_a9,
     author = {P. L. Ul'yanov},
     title = {On the metrizability of one topological space},
     journal = {Doklady Akademii Nauk},
     pages = {768--771},
     year = {1977},
     volume = {234},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_4_a9/}
}