%0 Journal Article %A R. R. Akhmerov %T A remark on the principle of averaging on the whole real line for equations of neutral type %J Differencialʹnye uravneniâ %D 1977 %P 1506 %V 13 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_8_a18/ %G ru %F DE_1977_13_8_a18