%0 Journal Article %A E. B. Frid %T The optimal stopping rule for a~Markov chain controlled by two persons with contradictory interests %J Teoriâ veroâtnostej i ee primeneniâ %D 1969 %P 746-749 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1969_14_4_a16/ %G ru %F TVP_1969_14_4_a16