TY - JOUR AU - R. R. Akhmerov TI - A remark on the principle of averaging on the whole real line for equations of neutral type JO - Differencialʹnye uravneniâ PY - 1977 SP - 1506 VL - 13 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1977_13_8_a18/ LA - ru ID - DE_1977_13_8_a18 ER -