%0 Journal Article %A I. B. Simonenko %T Higher approximations of the averaging method for parabolic equations %J Doklady Akademii Nauk %D 1973 %P 1255-1257 %V 213 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_213_6_a6/ %G ru %F DAN_1973_213_6_a6