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@article{DAN_1975_225_5_a8, author = {V. I. Sobolev and V. I. Shcherbin}, title = {On the differentiation of mappings of $K$-spaces}, journal = {Doklady Akademii Nauk}, pages = {1020--1022}, publisher = {mathdoc}, volume = {225}, number = {5}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_5_a8/} }
V. I. Sobolev; V. I. Shcherbin. On the differentiation of mappings of $K$-spaces. Doklady Akademii Nauk, Tome 225 (1975) no. 5, pp. 1020-1022. http://geodesic.mathdoc.fr/item/DAN_1975_225_5_a8/