%0 Journal Article %A Baars, Jan %T Equivalence of certain free topological groups %J Commentationes Mathematicae Universitatis Carolinae %D 1992 %P 125-130 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1992__33_1_a14/ %G en %F CMUC_1992__33_1_a14