@article{DE_1990_26_1_a14,
     author = {A. L. Skubachevskii},
     title = {Model nonlocal problems for elliptic equations in dihedral angles},
     journal = {Differencialʹnye uravneni\^a},
     pages = {120--131},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_1_a14/}
}