%0 Journal Article %A B. V. Aleshin %T Averaging in systems containing several small parameters %J Matematičeskie zametki %D 1974 %P 75-82 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1974_16_1_a8/ %G ru %F MZM_1974_16_1_a8