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@article{DAN_1967_176_5_a0, author = {A. V. Arkhangel'skii}, title = {Perfect maps and condensations}, journal = {Doklady Akademii Nauk}, pages = {983--986}, publisher = {mathdoc}, volume = {176}, number = {5}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_5_a0/} }
A. V. Arkhangel'skii. Perfect maps and condensations. Doklady Akademii Nauk, Tome 176 (1967) no. 5, pp. 983-986. http://geodesic.mathdoc.fr/item/DAN_1967_176_5_a0/