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@article{DAN_1965_164_1_a12, author = {S. L. Sobolev}, title = {A difference analogue of a polyharmonic equation}, journal = {Doklady Akademii Nauk}, pages = {54--57}, publisher = {mathdoc}, volume = {164}, number = {1}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_164_1_a12/} }
S. L. Sobolev. A difference analogue of a polyharmonic equation. Doklady Akademii Nauk, Tome 164 (1965) no. 1, pp. 54-57. http://geodesic.mathdoc.fr/item/DAN_1965_164_1_a12/