%0 Journal Article %A Hernández-Lerma, Onésimo %A Muñoz de Ozak, Myriam %T Discrete-time Markov control processes with discounted unbounded costs: Optimality criteria %J Kybernetika %D 1992 %P 191-212 %V 28 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1992__28_3_a2/ %G en %F KYB_1992__28_3_a2