%0 Journal Article %A R. P. Tarasov %T A dynamical system of billiard type %J Differencialʹnye uravneniâ %D 1988 %P 1611-1622 %V 24 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1988_24_9_a16/ %G ru %F DE_1988_24_9_a16