%0 Journal Article %A I. G. Khachatryan %T Certain inverse problems for differential operators of higher orders on the semiaxis %J Funkcionalʹnyj analiz i ego priloženiâ %D 1983 %P 40-52 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1983_17_1_a4/ %G ru %F FAA_1983_17_1_a4