@article{DE_1973_9_8_a11,
     author = {L. Shimon},
     title = {The approximation of the solutions of boundary value problems in unbounded domains},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1482--1492},
     publisher = {mathdoc},
     volume = {9},
     number = {8},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_8_a11/}
}