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@article{DAN_1961_141_3_a6, author = {Ya. M. Zhileikin}, title = {On a refinement of the bound of the spectral function of the {Laplace} operator}, journal = {Doklady Akademii Nauk}, pages = {543--546}, publisher = {mathdoc}, volume = {141}, number = {3}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a6/} }
Ya. M. Zhileikin. On a refinement of the bound of the spectral function of the Laplace operator. Doklady Akademii Nauk, Tome 141 (1961) no. 3, pp. 543-546. http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a6/