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@article{IVM_1978_2_a14, author = {N. N. Yakovlev}, title = {$O$-metrizable spaces}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {98--104}, publisher = {mathdoc}, number = {2}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1978_2_a14/} }
N. N. Yakovlev. $O$-metrizable spaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1978), pp. 98-104. http://geodesic.mathdoc.fr/item/IVM_1978_2_a14/