%0 Journal Article %A A. Tungatarov %T A class of elliptic systems in the plane with a singular point %J Differencialʹnye uravneniâ %D 1990 %P 1805-1816 %V 26 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_10_a19/ %G ru %F DE_1990_26_10_a19