@article{DE_2006_42_12_a8,
     author = {I. V. Roublev},
     title = {Reachability set of a three-dimensional cascade control system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1672--1679},
     publisher = {mathdoc},
     volume = {42},
     number = {12},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_12_a8/}
}