@article{DE_1978_14_11_a21, author = {G. B. Savchenko}, title = {The correctness of a boundary value problem for a system of linear differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {2082--2085}, publisher = {mathdoc}, volume = {14}, number = {11}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_11_a21/} }