TY - JOUR AU - E. A. Yakovleva TI - Averaging with respect to two small parameters of an elliptic equation with rapidly oscillating coefficients JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1981 SP - 1039 EP - 1045 VL - 21 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_4_a20/ LA - ru ID - ZVMMF_1981_21_4_a20 ER -