@article{DE_1989_25_7_a7,
     author = {T. A. Samarskaya},
     title = {Absolute and uniform convergence of expansions in root functions of a nonlocal boundary value problem of the first kind},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1155--1160},
     publisher = {mathdoc},
     volume = {25},
     number = {7},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_7_a7/}
}