TY - JOUR AU - L. P. Kuptsov TI - Mean value theorem and a~maximum principle for Kolmogorov's equation JO - Matematičeskie zametki PY - 1974 SP - 479 EP - 489 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1974_15_3_a14/ LA - ru ID - MZM_1974_15_3_a14 ER -