@article{DE_1973_9_4_a3,
     author = {O. I. Kyun},
     title = {The solvability of linear boundary value problems for an equation of neutral type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {620--625},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_4_a3/}
}