@article{SM_1994_77_1_a9,
     author = {S. A. Nazarov and B. A. Plamenevskii},
     title = {Elliptic problems with radiation conditions on edges of the~boundary},
     journal = {Sbornik. Mathematics},
     pages = {149--176},
     publisher = {mathdoc},
     volume = {77},
     number = {1},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1994_77_1_a9/}
}