%0 Journal Article %A A. Wallace %T Acyclicity of compact connected semigroups %J Fundamenta Mathematicae %D 1961 %P 99-105 %V 50 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-50-2-99-105/ %R 10.4064/fm-50-2-99-105 %G en %F 10_4064_fm_50_2_99_105