%0 Journal Article %A V. N. Laptinskii %A V. A. Livinskaya %T The analytic structure of periodic solutions of a Lyapunov type matrix differential equation %J Differencialʹnye uravneniâ %D 2000 %P 1289-1291 %V 36 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_9_a17/ %G ru %F DE_2000_36_9_a17