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@article{DAN_1973_210_3_a11, author = {B. A. Ryabov and G. P. Sachkov}, title = {Accumulation of perturbations in invariant dynamic systems}, journal = {Doklady Akademii Nauk}, pages = {549--551}, publisher = {mathdoc}, volume = {210}, number = {3}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_3_a11/} }
B. A. Ryabov; G. P. Sachkov. Accumulation of perturbations in invariant dynamic systems. Doklady Akademii Nauk, Tome 210 (1973) no. 3, pp. 549-551. http://geodesic.mathdoc.fr/item/DAN_1973_210_3_a11/