%0 Journal Article %A Fuchs, L. %A Viljoen, G. %T Valuated Butler groups of special type %J Czechoslovak Mathematical Journal %D 1999 %P 507-516 %V 49 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_1999__49_3_a4/ %G en %F CMJ_1999__49_3_a4