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@article{DAN_1975_224_4_a3, author = {I. M. Leibo}, title = {On closed images of metric spaces}, journal = {Doklady Akademii Nauk}, pages = {756--759}, publisher = {mathdoc}, volume = {224}, number = {4}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_224_4_a3/} }
I. M. Leibo. On closed images of metric spaces. Doklady Akademii Nauk, Tome 224 (1975) no. 4, pp. 756-759. http://geodesic.mathdoc.fr/item/DAN_1975_224_4_a3/