%0 Journal Article %A Kh. G. Bzhikhatlov %T A boundary value problem for a certain degenerate hyperbolic equation, and singular integral equations of the third kind %J Differencialʹnye uravneniâ %D 1971 %P 3-14 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_1_a0/ %G ru %F DE_1971_7_1_a0