@article{DE_1989_25_8_a1,
     author = {D. M. Dovletov},
     title = {A nonlocal boundary value problem of the first kind in a differential and a difference treatment},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1297--1307},
     publisher = {mathdoc},
     volume = {25},
     number = {8},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_8_a1/}
}