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@article{DAN_1973_211_1_a0, author = {G. P. Amirdzhanov}, title = {$Q$-spaces and cardinal numbers}, journal = {Doklady Akademii Nauk}, pages = {11--14}, publisher = {mathdoc}, volume = {211}, number = {1}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_1_a0/} }
G. P. Amirdzhanov. $Q$-spaces and cardinal numbers. Doklady Akademii Nauk, Tome 211 (1973) no. 1, pp. 11-14. http://geodesic.mathdoc.fr/item/DAN_1973_211_1_a0/