%0 Journal Article
%A Anderson, D. D.
%A Matijevic, J.
%T Graded π-rings
%J Canadian journal of mathematics
%D 1979
%P 449-457
%V 31
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-050-0/
%R 10.4153/CJM-1979-050-0
%F 10_4153_CJM_1979_050_0