@article{DE_1982_18_3_a10,
     author = {V. Ya. Tereshchenko},
     title = {Orthogonal expansions on the boundary of the domain in elliptic boundary value problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {476--486},
     year = {1982},
     volume = {18},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_3_a10/}
}