%0 Journal Article %A M. S. Li %T On the existence and extendability of the solution of a system of Volterra integral equations whose right-hand side is a discontinuous operator %J Differencialʹnye uravneniâ %D 1965 %P 387-392 %V 1 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1965_1_3_a12/ %G ru %F DE_1965_1_3_a12