%0 Journal Article %A A. A. Ershov %T Construction of reachable sets of controlled systems with second order of %J Sibirskij žurnal vyčislitelʹnoj matematiki %D 2020 %P 365-380 %V 23 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJVM_2020_23_4_a1/ %G ru %F SJVM_2020_23_4_a1