%0 Journal Article %A V. I. Korzyuk %A N. J. Yurchuk %T A conjugation problem for non-stationary abstract linear differential equations %J Differencialʹnye uravneniâ %D 1971 %P 1629-1638 %V 7 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_9_a9/ %G ru %F DE_1971_7_9_a9