@article{DE_1973_9_1_a10,
     author = {S. K. Kumykova},
     title = {Certain boundary value problems with a shift for the {Lavrent'ev--Bicadze} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {106--114},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_1_a10/}
}