@article{DE_1991_27_1_a14,
     author = {A. L. Skubachevskii},
     title = {The method of cut-off functions in the theory of nonlocal problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {128--139},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_1_a14/}
}