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@article{DAN_1967_173_3_a9, author = {S. I. Nedev}, title = {Symmetrizable spaces and $\varepsilon$-mappings}, journal = {Doklady Akademii Nauk}, pages = {523--525}, publisher = {mathdoc}, volume = {173}, number = {3}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_3_a9/} }
S. I. Nedev. Symmetrizable spaces and $\varepsilon$-mappings. Doklady Akademii Nauk, Tome 173 (1967) no. 3, pp. 523-525. http://geodesic.mathdoc.fr/item/DAN_1967_173_3_a9/