TY - JOUR AU - V. V. Sarafyan TI - Diffusion processes and differential equations degenerating at certain points JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1972 SP - 738 EP - 743 VL - 17 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1972_17_4_a11/ LA - ru ID - TVP_1972_17_4_a11 ER -