TY - JOUR AU - Kh. Eshmatov TI - Averaging in certain systems of integro-differential equations JO - Differencialʹnye uravneniâ PY - 1974 SP - 1124 EP - 1129 VL - 10 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_6_a15/ LA - ru ID - DE_1974_10_6_a15 ER -