%0 Journal Article %A Bojadziev, H. N. %T Characterization of the generators of $C_0$ semigroups which leave a convex set invariant %J Commentationes Mathematicae Universitatis Carolinae %D 1984 %P 159-170 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1984__25_1_a12/ %G en %F CMUC_1984__25_1_a12