%0 Journal Article %A V. N. Ushakov %A A. A. Ershov %T Estimation of the growth of the degree of nonconvexity of reachable sets in terms of $\alpha$-sets %J Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleniâ %D 2020 %P 100-106 %V 495 %U http://geodesic.mathdoc.fr/item/DANMA_2020_495_a20/ %G ru %F DANMA_2020_495_a20