@article{IVM_1984_1_a6,
     author = {E. M. Il'in},
     title = {The principle of limit absorption and scattering by noncompact {obstacles.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {46--55},
     publisher = {mathdoc},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_1_a6/}
}