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@article{DE_1968_4_7_a5, author = {N. N. Petrov}, title = {Local controllability of autonomous systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1218--1232}, publisher = {mathdoc}, volume = {4}, number = {7}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_7_a5/} }
N. N. Petrov. Local controllability of autonomous systems. Differencialʹnye uravneniâ, Tome 4 (1968) no. 7, pp. 1218-1232. http://geodesic.mathdoc.fr/item/DE_1968_4_7_a5/