%0 Journal Article %A G. V. Arzhanov %T On a non-linear boundary-value problem of Riemann type %J Doklady Akademii Nauk %D 1960 %P 1227-1230 %V 132 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_132_6_a0/ %G ru %F DAN_1960_132_6_a0