%0 Journal Article %A V. B. Levenshtam %T Exponential dichotomy and the averaging method for parabolic %J Doklady Akademii Nauk %D 1991 %P 1316-1319 %V 318 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_318_6_a7/ %G ru %F DAN_1991_318_6_a7