%0 Journal Article %A V. V. Sarafyan %T Diffusion processes and differential equations degenerating at certain points %J Teoriâ veroâtnostej i ee primeneniâ %D 1972 %P 738-743 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1972_17_4_a11/ %G ru %F TVP_1972_17_4_a11