%0 Journal Article %A Moser, W.O.J. %T Abstract Definitions for the Mathieu Groups M11and M12 %J Canadian mathematical bulletin %D 1959 %P 9-13 %V 2 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1959-003-0/ %R 10.4153/CMB-1959-003-0 %F 10_4153_CMB_1959_003_0