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@article{DAN_1960_133_4_a5, author = {V. I. Gaǐduk}, title = {On nonlinear oscillations in a weak external field, a description by {Lagrange's} equations}, journal = {Doklady Akademii Nauk}, pages = {760--763}, publisher = {mathdoc}, volume = {133}, number = {4}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_133_4_a5/} }
V. I. Gaǐduk. On nonlinear oscillations in a weak external field, a description by Lagrange's equations. Doklady Akademii Nauk, Tome 133 (1960) no. 4, pp. 760-763. http://geodesic.mathdoc.fr/item/DAN_1960_133_4_a5/