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@article{DE_1982_18_4_a10, author = {R. R. Ashurov}, title = {The asymptotic behavior of spectral functions of some elliptic operators}, journal = {Differencialʹnye uravneni\^a}, pages = {621--625}, publisher = {mathdoc}, volume = {18}, number = {4}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1982_18_4_a10/} }
R. R. Ashurov. The asymptotic behavior of spectral functions of some elliptic operators. Differencialʹnye uravneniâ, Tome 18 (1982) no. 4, pp. 621-625. http://geodesic.mathdoc.fr/item/DE_1982_18_4_a10/