@article{IIMI_2019_53_a5,
     author = {I. V. Zykov},
     title = {On external estimates of reachable sets of control systems with integral constraints},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {61--72},
     publisher = {mathdoc},
     volume = {53},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2019_53_a5/}
}