%0 Journal Article %A Andrzej SzymaƄski %T On spaces with binary normal subbase %J Colloquium Mathematicum %D 1982 %P 19-21 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-46-1-19-21/ %R 10.4064/cm-46-1-19-21 %G en %F 10_4064_cm_46_1_19_21