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@article{DAN_1960_133_2_a10, author = {T. N. Tribeleva}, title = {On the stability of periodic motions}, journal = {Doklady Akademii Nauk}, pages = {292--295}, publisher = {mathdoc}, volume = {133}, number = {2}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_133_2_a10/} }
T. N. Tribeleva. On the stability of periodic motions. Doklady Akademii Nauk, Tome 133 (1960) no. 2, pp. 292-295. http://geodesic.mathdoc.fr/item/DAN_1960_133_2_a10/