%0 Journal Article %A Sladký, Karel %T On the existence of stationary optimal policies in discrete dynamic programming %J Kybernetika %D 1981 %P 489-513 %V 17 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1981__17_6_a2/ %G en %F KYB_1981__17_6_a2