%0 Journal Article %A D. I. Bugrov %A A. M. Formal'sky %T Change of the attainability set after transition to a reduced system %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2020 %P 58-60 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2020_2_a11/ %G ru %F VMUMM_2020_2_a11