%0 Journal Article %A V. G. Yakhno %T A uniqueness theorem for a certain inverse problem for a hyperbolic equation %J Differencialʹnye uravneniâ %D 1977 %P 544-551 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_3_a18/ %G ru %F DE_1977_13_3_a18