TY - JOUR AU - V. V. Zhikov TI - The Lavrent'ev effect and averaging of nonlinear variational problems JO - Differencialʹnye uravneniâ PY - 1991 SP - 42 EP - 50 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1991_27_1_a5/ LA - ru ID - DE_1991_27_1_a5 ER -