%0 Journal Article %A Schwabik, Štefan %T Operator-valued functions of bounded semivariation and convolutions %J Mathematica Bohemica %D 2001 %P 745-777 %V 126 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.134117/ %R 10.21136/MB.2001.134117 %G en %F 10_21136_MB_2001_134117