%0 Journal Article %A P. HARTMAN %T On Limits of Riemann Sums and the Range of Integrals. %J Mathematische Annalen %D 1968 %P 208-220 %V 176 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1968__176_161691/ %F MAN_1968__176_161691