@article{DAN_1977_234_5_a0,
     author = {G. P. Amirdzhanov},
     title = {On dense subspaces of countable pseudocharacter and other generalizations of separability},
     journal = {Doklady Akademii Nauk},
     pages = {993--996},
     year = {1977},
     volume = {234},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_5_a0/}
}