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@article{DAN_1975_225_4_a6, author = {B. \`E. Shapirovskii}, title = {On the cardinality of hereditarily normal spaces}, journal = {Doklady Akademii Nauk}, pages = {767--770}, publisher = {mathdoc}, volume = {225}, number = {4}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_4_a6/} }
B. È. Shapirovskii. On the cardinality of hereditarily normal spaces. Doklady Akademii Nauk, Tome 225 (1975) no. 4, pp. 767-770. http://geodesic.mathdoc.fr/item/DAN_1975_225_4_a6/