%0 Journal Article %A V. M. Kadets %A M. I. Kadets %T Conditions for convexity of the set of limits of Riemann sums of a vector-valued function %J Matematičeskie zametki %D 1984 %P 161-167 %V 35 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1984_35_2_a3/ %G ru %F MZM_1984_35_2_a3