%0 Journal Article %A Michael Becker %T Linear approximation processes in locally convex spaces. I. Semigroups of operators and saturation. %J Aequationes mathematicae %D 1976 %P 73-82 %V 14 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1976__14_136566/ %F AM2_1976__14_136566