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@article{DAN_1972_206_3_a11, author = {B. Shapirovskii}, title = {On the density of topological spaces}, journal = {Doklady Akademii Nauk}, pages = {559--562}, publisher = {mathdoc}, volume = {206}, number = {3}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_206_3_a11/} }
B. Shapirovskii. On the density of topological spaces. Doklady Akademii Nauk, Tome 206 (1972) no. 3, pp. 559-562. http://geodesic.mathdoc.fr/item/DAN_1972_206_3_a11/