@article{FAA_1983_17_1_a4,
     author = {I. G. Khachatryan},
     title = {Certain inverse problems for differential operators of higher orders on the semiaxis},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {40--52},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1983_17_1_a4/}
}