%0 Journal Article %A L. F. Rakhmatullina %T On the theory of linear equations with functional argument %J Differencialʹnye uravneniâ %D 1972 %P 523-528 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_3_a13/ %G ru %F DE_1972_8_3_a13