%0 Journal Article %A Kh. R. Shukurov %T A problem of Riemann--Hilbert type for a degenerate elliptic system of first-order equations %J Differencialʹnye uravneniâ %D 1986 %P 176-179 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_1_a23/ %G ru %F DE_1986_22_1_a23