@article{DE_1979_15_1_a9,
     author = {A. A. Kerefov},
     title = {Nonlocal boundary value problems for parabolic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {74--78},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_1_a9/}
}