@article{DAN_1975_221_3_a10,
     author = {R. A. Eiyubov},
     title = {On a boundary-value problem for an elliptic equation with a small parameter},
     journal = {Doklady Akademii Nauk},
     pages = {551--554},
     publisher = {mathdoc},
     volume = {221},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_3_a10/}
}