%0 Journal Article %A V. V. Zhikov %T The Lavrent'ev effect and averaging of nonlinear variational problems %J Differencialʹnye uravneniâ %D 1991 %P 42-50 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_1_a5/ %G ru %F DE_1991_27_1_a5