%0 Journal Article %A Došlý, Ondřej %T Second phase matrix of differential systems $Y'+P(x)Y=0$ %J Časopis pro pěstování matematiky %D 1987 %P 381-389 %V 112 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1987.108553/ %R 10.21136/CPM.1987.108553 %G en %F 10_21136_CPM_1987_108553