@article{DE_1988_24_8_a17,
     author = {A. G. Baskakov and T. K. Katsaran},
     title = {Spectral analysis of integro-differential operators with nonlocal boundary conditions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1424--1433},
     publisher = {mathdoc},
     volume = {24},
     number = {8},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_8_a17/}
}