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@article{DAN_1957_115_4_a4, author = {G. V. Koritskii}, title = {Curvature of level curves in univalent conformal mappings}, journal = {Doklady Akademii Nauk}, pages = {653--654}, publisher = {mathdoc}, volume = {115}, number = {4}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_4_a4/} }
G. V. Koritskii. Curvature of level curves in univalent conformal mappings. Doklady Akademii Nauk, Tome 115 (1957) no. 4, pp. 653-654. http://geodesic.mathdoc.fr/item/DAN_1957_115_4_a4/