%0 Journal Article %A С. Вylka %T On some class of monotonie functions %J Commentationes Mathematicae %D 1976 %P 23-24 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i1.5835/ %R 10.14708/cm.v19i1.5835 %G pl %F 10_14708_cm_v19i1_5835