@article{DAN_1969_187_5_a2,
     author = {A. A. Borovkov},
     title = {Three types of conditions for convergence to diffusion processes},
     journal = {Doklady Akademii Nauk},
     pages = {974--977},
     publisher = {mathdoc},
     volume = {187},
     number = {5},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_5_a2/}
}