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@article{DE_1979_15_12_a5, author = {N. N. Petrov}, title = {An analogue of the {Birkhoff} theory for invariant sets of control systems}, journal = {Differencialʹnye uravneni\^a}, pages = {2155--2160}, publisher = {mathdoc}, volume = {15}, number = {12}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_12_a5/} }
N. N. Petrov. An analogue of the Birkhoff theory for invariant sets of control systems. Differencialʹnye uravneniâ, Tome 15 (1979) no. 12, pp. 2155-2160. http://geodesic.mathdoc.fr/item/DE_1979_15_12_a5/