%0 Journal Article
%A Biggs, R. G.
%T A New Bound for Nil U-Rings
%J Canadian journal of mathematics
%D 1970
%P 403-407
%V 22
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-049-0/
%R 10.4153/CJM-1970-049-0
%F 10_4153_CJM_1970_049_0