%0 Journal Article %A O. V. Sarmanov %T The properties of a two-dimensional density defining a stationary Markov process %J Doklady Akademii Nauk %D 1961 %P 1295-1297 %V 136 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_136_6_a8/ %G ru %F DAN_1961_136_6_a8