@article{DE_1978_14_7_a24,
     author = {Yu. S. \`Eidel'man},
     title = {A boundary value problem for a differential equation with a parameter},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1335--1337},
     year = {1978},
     volume = {14},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_7_a24/}
}