%0 Journal Article %A V. N. Kolokoltsov %T Turnpikes and infinite extremals in Markov decision processes %J Matematičeskie zametki %D 1989 %P 118-120 %V 46 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a17/ %G ru %F MZM_1989_46_4_a17