%0 Journal Article %A Szymon Plewik %T On some problem of A. Rosłanowski %J Colloquium Mathematicum %D 1996 %P 297-298 %V 69 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-69-2-297-298/ %R 10.4064/cm-69-2-297-298 %G pl %F 10_4064_cm_69_2_297_298