@article{DE_1978_14_10_a8,
     author = {N. S. Rettiev},
     title = {Some properties of minimal invariant sets of control systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1796--1805},
     publisher = {mathdoc},
     volume = {14},
     number = {10},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_10_a8/}
}