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@article{DAN_1962_144_2_a10, author = {M. G. Shur}, title = {The {Martin} boundary for linear, second-order elliptic operators}, journal = {Doklady Akademii Nauk}, pages = {290--292}, publisher = {mathdoc}, volume = {144}, number = {2}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_2_a10/} }
M. G. Shur. The Martin boundary for linear, second-order elliptic operators. Doklady Akademii Nauk, Tome 144 (1962) no. 2, pp. 290-292. http://geodesic.mathdoc.fr/item/DAN_1962_144_2_a10/