@article{DE_1978_14_4_a16,
     author = {Sh. K. Baimov},
     title = {Properties of the eigenvalues and eigenfunctions of a general nonselfadjoint elliptic boundary value problem in an unbounded domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {724--727},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_4_a16/}
}