@article{DE_1993_29_1_a7,
     author = {N. B. Kerimov and T. I. Allakhverdiev},
     title = {On a boundary value problem. {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {54--60},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_1_a7/}
}