@article{IVM_1981_9_a20,
     author = {A. P. Tikhonov},
     title = {On the univalent solvability of an exterior inverse boundary value problem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {85--87},
     publisher = {mathdoc},
     number = {9},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_9_a20/}
}