@article{DE_1968_4_11_a1,
     author = {Yu. A. Klokov},
     title = {The solvability of boundary value problems when {Bern\v{s}teǐn's} condition is satisfied},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1939--1948},
     year = {1968},
     volume = {4},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_11_a1/}
}