%0 Journal Article %A T. A. Toronjadze %T Coincidence of $\sigma$-Algebras in the Scheme of Partially-Observable %J Teoriâ veroâtnostej i ee primeneniâ %D 1987 %P 580-585 %V 32 %N 3 %U http://geodesic.mathdoc.fr/item/TVP_1987_32_3_a18/ %G ru %F TVP_1987_32_3_a18