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@article{DAN_1971_199_3_a4, author = {A. P. Kombarov}, title = {On $\Sigma$-products of topological spaces}, journal = {Doklady Akademii Nauk}, pages = {526--528}, publisher = {mathdoc}, volume = {199}, number = {3}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_199_3_a4/} }
A. P. Kombarov. On $\Sigma$-products of topological spaces. Doklady Akademii Nauk, Tome 199 (1971) no. 3, pp. 526-528. http://geodesic.mathdoc.fr/item/DAN_1971_199_3_a4/