%0 Journal Article %A Balcerzak, Marek %T Functions with fibres large on each nonvoid open set %J Acta Universitatis Lodziensis. Folia Mathematica %D 1995 %V 07 %I mathdoc %U http://geodesic.mathdoc.fr/item/AULFM_1995_07_a10/ %G en %F AULFM_1995_07_a10