%0 Journal Article %A A. Mekler %A G. Schlitt %T The theory of dual groups %J Fundamenta Mathematicae %D 1994 %P 129-142 %V 144 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-144-2-129-142/ %R 10.4064/fm-144-2-129-142 %G en %F 10_4064_fm_144_2_129_142