%0 Journal Article %A Bernd Kirchheim %T On sets of points of semicontinuity in fine topologies generated by an ideal %J Fundamenta Mathematicae %D 1990 %P 157-170 %V 134 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-134-2-157-170/ %R 10.4064/fm-134-2-157-170 %G en %F 10_4064_fm_134_2_157_170