%0 Journal Article %A V. I. Ukhobotov %A I. V. Izmestyev %T On a game of impulse meeting with a terminal set in the form of a ring %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika %D 2014 %P 53-59 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURM_2014_6_3_a7/ %G ru %F VYURM_2014_6_3_a7