%0 Journal Article %A J. Jastrzębski %A Jacek Jędrzejewski %A Tomasz Natkaniec %T On some subclasses of Darboux functions %J Fundamenta Mathematicae %D 1991 %P 165-173 %V 138 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-138-3-165-173/ %R 10.4064/fm-138-3-165-173 %G en %F 10_4064_fm_138_3_165_173