%0 Journal Article %A Jarník, Jiří %A Kurzweil, Jaroslav %T A general form of the product integral and linear ordinary differential equations %J Czechoslovak Mathematical Journal %D 1987 %P 642-659 %V 37 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102191/ %R 10.21136/CMJ.1987.102191 %G en %F 10_21136_CMJ_1987_102191