%0 Journal Article %A B. L. Rozovskiǐ %T Filtering, smoothing and prediction of degenerate diffusion processes. Backward equations %J Teoriâ veroâtnostej i ee primeneniâ %D 1983 %P 725-737 %V 28 %N 4 %U http://geodesic.mathdoc.fr/item/TVP_1983_28_4_a9/ %G ru %F TVP_1983_28_4_a9