%0 Journal Article %A Muharem Avdispahic %A Lejla Smajlovic %T f-Variation and Barner-Weil Formula %J Mathematica balkanica %D 2003 %P 267 %V 17 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2003_17_3-4_a8/ %F MABA_2003_17_3-4_a8