%0 Journal Article %A L. P. Kuptsov %T The mean property and the maximum principle for parabolic equations of second order %J Doklady Akademii Nauk %D 1978 %P 529-532 %V 242 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_242_3_a6/ %G ru %F DAN_1978_242_3_a6