%0 Journal Article %A V. R. Nosov %T The existence of periodic solutions in linear systems of general form with a distributed deviation of the argument %J Differencialʹnye uravneniâ %D 1971 %P 2168-2175 %V 7 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_12_a5/ %G ru %F DE_1971_7_12_a5