%0 Journal Article %A G. Karakostas %T On a Staffans type inequality for vector Volterra integro-differential equations %J Colloquium Mathematicum %D 1987 %P 313-317 %V 52 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-52-2-313-317/ %R 10.4064/cm-52-2-313-317 %G en %F 10_4064_cm_52_2_313_317