%0 Journal Article %A Arhangel'skii, A. V. %A Bella, A. %T Countable fan-tightness versus countable tightness %J Commentationes Mathematicae Universitatis Carolinae %D 1996 %P 565-576 %V 37 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1996__37_3_a13/ %G en %F CMUC_1996__37_3_a13