%0 Journal Article %A A. A. Borovkov %T Three types of conditions for convergence to diffusion processes %J Doklady Akademii Nauk %D 1969 %P 974-977 %V 187 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_187_5_a2/ %G ru %F DAN_1969_187_5_a2