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@article{DAN_1990_310_4_a0, author = {D. G. Vasil'ev}, title = {Two-term asymptotics of the spectrum of natural frequencies of a}, journal = {Doklady Akademii Nauk}, pages = {777--780}, publisher = {mathdoc}, volume = {310}, number = {4}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_4_a0/} }
D. G. Vasil'ev. Two-term asymptotics of the spectrum of natural frequencies of a. Doklady Akademii Nauk, Tome 310 (1990) no. 4, pp. 777-780. http://geodesic.mathdoc.fr/item/DAN_1990_310_4_a0/