%0 Journal Article %A Paul Dierker %T Two complexes that are spines of the three ball %J Fundamenta Mathematicae %D 1970 %P 283-286 %V 66 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-66-3-283-286/ %R 10.4064/fm-66-3-283-286 %G en %F 10_4064_fm_66_3_283_286