@article{DE_1976_12_3_a16,
     author = {V. V. Gudkov},
     title = {Boundary value problems on finite and infinite intervals},
     journal = {Differencialʹnye uravneni\^a},
     pages = {555--557},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_3_a16/}
}