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@article{MZM_1987_41_2_a10, author = {N. M. Isakov}, title = {Theorems on the smoothness of the right inverse}, journal = {Matemati\v{c}eskie zametki}, pages = {216--226}, publisher = {mathdoc}, volume = {41}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_2_a10/} }
N. M. Isakov. Theorems on the smoothness of the right inverse. Matematičeskie zametki, Tome 41 (1987) no. 2, pp. 216-226. http://geodesic.mathdoc.fr/item/MZM_1987_41_2_a10/