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@article{MZM_1990_47_5_a0, author = {E. R. Avakov}, title = {Theorems on estimates in the neighborhood of a~singular point of a~mapping}, journal = {Matemati\v{c}eskie zametki}, pages = {3--13}, publisher = {mathdoc}, volume = {47}, number = {5}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1990_47_5_a0/} }
E. R. Avakov. Theorems on estimates in the neighborhood of a~singular point of a~mapping. Matematičeskie zametki, Tome 47 (1990) no. 5, pp. 3-13. http://geodesic.mathdoc.fr/item/MZM_1990_47_5_a0/