@article{DAN_1973_211_1_a3,
     author = {L. A. Bagirov and V. I. Feigin},
     title = {Boundary value problems for elliptic equations in domains with an unbounded boundary},
     journal = {Doklady Akademii Nauk},
     pages = {23--26},
     publisher = {mathdoc},
     volume = {211},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_1_a3/}
}