@article{DE_1977_13_11_a7,
     author = {V. P. Maksimov and L. F. Rakhmatullina},
     title = {A conjugate equation for a general linear boundary value problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1966--1973},
     publisher = {mathdoc},
     volume = {13},
     number = {11},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_11_a7/}
}