@article{DAN_1982_265_6_a4,
     author = {M. V. Klibanov},
     title = {On a class of inverse problems},
     journal = {Doklady Akademii Nauk},
     pages = {1306--1309},
     year = {1982},
     volume = {265},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_265_6_a4/}
}