%0 Journal Article %A N. S. Bakhvalov %T Averaging of partial differential equations with rapidly oscillating coefficients %J Doklady Akademii Nauk %D 1975 %P 516-519 %V 221 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_221_3_a1/ %G ru %F DAN_1975_221_3_a1