%0 Journal Article %A V. M. Millionščikov %T On the spectral theory of nonautonomous linear systems of differential equations %J Trudy Moskovskogo matematičeskogo obŝestva %D 1968 %P 147-186 %V 18 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1968_18_a8/ %G ru %F MMO_1968_18_a8