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@article{DAN_1982_263_6_a8, author = {A. A. Reznik}, title = {Approximation of the potential surfaces of elliptic operators by difference potentials}, journal = {Doklady Akademii Nauk}, pages = {1318--1321}, publisher = {mathdoc}, volume = {263}, number = {6}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1982_263_6_a8/} }
A. A. Reznik. Approximation of the potential surfaces of elliptic operators by difference potentials. Doklady Akademii Nauk, Tome 263 (1982) no. 6, pp. 1318-1321. http://geodesic.mathdoc.fr/item/DAN_1982_263_6_a8/