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@article{DAN_1967_173_3_a5, author = {M. D. Dolberg and N. N. Yasnitskaya}, title = {A lower boud bound for oscillation frequencies of elastic systems}, journal = {Doklady Akademii Nauk}, pages = {507--510}, publisher = {mathdoc}, volume = {173}, number = {3}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_3_a5/} }
M. D. Dolberg; N. N. Yasnitskaya. A lower boud bound for oscillation frequencies of elastic systems. Doklady Akademii Nauk, Tome 173 (1967) no. 3, pp. 507-510. http://geodesic.mathdoc.fr/item/DAN_1967_173_3_a5/