%0 Journal Article %A A. Lelek %T Disjoint mappings and the span of spaces %J Fundamenta Mathematicae %D 1964 %P 199-214 %V 55 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-55-3-199-214/ %R 10.4064/fm-55-3-199-214 %G en %F 10_4064_fm_55_3_199_214