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@article{DAN_1991_317_6_a9, author = {L. M. Litvin and V. V. Rudnev}, title = {On almost-periodic oscillations in mechanical systems}, journal = {Doklady Akademii Nauk}, pages = {1329--1333}, publisher = {mathdoc}, volume = {317}, number = {6}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_6_a9/} }
L. M. Litvin; V. V. Rudnev. On almost-periodic oscillations in mechanical systems. Doklady Akademii Nauk, Tome 317 (1991) no. 6, pp. 1329-1333. http://geodesic.mathdoc.fr/item/DAN_1991_317_6_a9/