%0 Journal Article %A D. I. Bugrov %A M. I. Bugrova %T Variation of the size of reachable region of second-order linear system %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2022 %P 47-52 %N 2 %U http://geodesic.mathdoc.fr/item/VMUMM_2022_2_a5/ %G ru %F VMUMM_2022_2_a5