%0 Journal Article
%A Gorman, Howard
%T Invertibility and Class Number of Orders
%J Canadian journal of mathematics
%D 1971
%P 1-11
%V 23
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-001-1/
%R 10.4153/CJM-1971-001-1
%F 10_4153_CJM_1971_001_1