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@article{DAN_1982_264_3_a11, author = {V. V. Kozlov}, title = {Averaging in the neighborhood of stable periodic motions}, journal = {Doklady Akademii Nauk}, pages = {567--570}, publisher = {mathdoc}, volume = {264}, number = {3}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1982_264_3_a11/} }
V. V. Kozlov. Averaging in the neighborhood of stable periodic motions. Doklady Akademii Nauk, Tome 264 (1982) no. 3, pp. 567-570. http://geodesic.mathdoc.fr/item/DAN_1982_264_3_a11/