%0 Journal Article %A Reinhold Baer %T Group theoretical properties and functions %J Colloquium Mathematicum %D 1966 %P 285-328 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-14-1-285-328/ %R 10.4064/cm-14-1-285-328 %G en %F 10_4064_cm_14_1_285_328