@article{DE_1986_22_1_a21,
     author = {Z. A. Nakhusheva},
     title = {A nonlocal problem for partial differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {171--174},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_1_a21/}
}