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@article{DAN_1962_144_6_a5, author = {Ya. N. Roitenberg}, title = {On the determination of the state of a non-linear control system in phase space}, journal = {Doklady Akademii Nauk}, pages = {1225--1228}, publisher = {mathdoc}, volume = {144}, number = {6}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_6_a5/} }
Ya. N. Roitenberg. On the determination of the state of a non-linear control system in phase space. Doklady Akademii Nauk, Tome 144 (1962) no. 6, pp. 1225-1228. http://geodesic.mathdoc.fr/item/DAN_1962_144_6_a5/