%0 Journal Article %A R. Taberski %T Some properties of M-variations %J Commentationes Mathematicae %D 1971 %P 141-146 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v15i1.5714/ %R 10.14708/cm.v15i1.5714 %G pl %F 10_14708_cm_v15i1_5714