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@article{DAN_1964_158_1_a8, author = {A. G. Kostyuchenko}, title = {The asymptotic distribution of eigenvalues of elliptic operators}, journal = {Doklady Akademii Nauk}, pages = {41--44}, publisher = {mathdoc}, volume = {158}, number = {1}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a8/} }
A. G. Kostyuchenko. The asymptotic distribution of eigenvalues of elliptic operators. Doklady Akademii Nauk, Tome 158 (1964) no. 1, pp. 41-44. http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a8/