%0 Journal Article %A . Redaktor %T Miscellanea %J WiadomoĊ›ci Matematyczne %D 2008 %P 136 %V 44 %N 01 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/wm.v44i01.5092/ %R 10.14708/wm.v44i01.5092 %G pl %F 10_14708_wm_v44i01_5092