%0 Journal Article %A V. N. Ushakov %A A. V. Ushakov %T On the approach problem for a control system on a finite time interval %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2022 %P 111-154 %V 60 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIMI_2022_60_a6/ %G ru %F IIMI_2022_60_a6