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@article{DE_1987_23_7_a17, author = {M. P. Sapagovas and R. J. \v{C}iegis}, title = {On some boundary value problems with a nonlocal condition}, journal = {Differencialʹnye uravneni\^a}, pages = {1268--1274}, publisher = {mathdoc}, volume = {23}, number = {7}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1987_23_7_a17/} }
M. P. Sapagovas; R. J. Čiegis. On some boundary value problems with a nonlocal condition. Differencialʹnye uravneniâ, Tome 23 (1987) no. 7, pp. 1268-1274. http://geodesic.mathdoc.fr/item/DE_1987_23_7_a17/