@article{DE_1972_8_2_a19,
     author = {D. A. Ovsyannikov},
     title = {On the question of the stability in the large of a certain class of nonlinear control systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {377--379},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_2_a19/}
}