%0 Journal Article %A Burgess, W. D. %T A Characterization of Biregular Group Rings %J Canadian mathematical bulletin %D 1978 %P 119-120 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-020-8/ %R 10.4153/CMB-1978-020-8 %F 10_4153_CMB_1978_020_8