%0 Journal Article %A L. P. Kuptsov %T Mean value theorem and a~maximum principle for Kolmogorov's equation %J Matematičeskie zametki %D 1974 %P 479-489 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1974_15_3_a14/ %G ru %F MZM_1974_15_3_a14