TY - JOUR AU - Kh. Eshmatov TI - Freezing and averaging methods for certain systems of integro-differential equations with an integral boundary condition JO - Differencialʹnye uravneniâ PY - 1986 SP - 1636 EP - 1640 VL - 22 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1986_22_9_a29/ LA - ru ID - DE_1986_22_9_a29 ER -