%0 Journal Article %A V. Kh. Kharasakhal %T A method of investigating linear systems of differential equations with quasi-periodic coefficients %J Doklady Akademii Nauk %D 1961 %P 313-315 %V 139 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_2_a13/ %G ru %F DAN_1961_139_2_a13