%0 Journal Article %A V. A. Pliss %T Rough sequences of linear periodic systems of differential equations %J Doklady Akademii Nauk %D 1972 %P 295-297 %V 204 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_204_2_a9/ %G ru %F DAN_1972_204_2_a9