%0 Journal Article %A M. K. Yakovlev %T On a method for constructing Ljapunov's function for linear systems with variable coefficients %J Differencialʹnye uravneniâ %D 1965 %P 1488-1492 %V 1 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1965_1_11_a5/ %G ru %F DE_1965_1_11_a5