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@article{DE_1990_26_10_a19, author = {A. Tungatarov}, title = {A class of elliptic systems in the plane with a singular point}, journal = {Differencialʹnye uravneni\^a}, pages = {1805--1816}, publisher = {mathdoc}, volume = {26}, number = {10}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_10_a19/} }
A. Tungatarov. A class of elliptic systems in the plane with a singular point. Differencialʹnye uravneniâ, Tome 26 (1990) no. 10, pp. 1805-1816. http://geodesic.mathdoc.fr/item/DE_1990_26_10_a19/