%0 Journal Article
%A Leech, John
%T A Presentation of the Mathieu Group M12
%J Canadian mathematical bulletin
%D 1969
%P 41-43
%V 12
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-005-8/
%R 10.4153/CMB-1969-005-8
%F 10_4153_CMB_1969_005_8