%0 Journal Article
%A Gonçalves, Jairo Zacarias
%T Free Subgroups of Units in Group Rings
%J Canadian mathematical bulletin
%D 1984
%P 309-312
%V 27
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1984-046-7/
%R 10.4153/CMB-1984-046-7
%F 10_4153_CMB_1984_046_7