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@article{DAN_1987_297_5_a1, author = {A. N. Vagin}, title = {Distortion theory for multivalent quasiconformal mappings of the}, journal = {Doklady Akademii Nauk}, pages = {1036--1039}, publisher = {mathdoc}, volume = {297}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a1/} }
A. N. Vagin. Distortion theory for multivalent quasiconformal mappings of the. Doklady Akademii Nauk, Tome 297 (1987) no. 5, pp. 1036-1039. http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a1/