%0 Journal Article %A Z. Kh. Nasyrov %A V. A. Tupchiev %T A problem on the decay of a discontinuity for a class of systems of three equations %J Differencialʹnye uravneniâ %D 1983 %P 660-666 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_4_a14/ %G ru %F DE_1983_19_4_a14