%0 Journal Article %A Craigen, R. %T Trace, Symmetry and Orthogonality %J Canadian mathematical bulletin %D 1994 %P 461-467 %V 37 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-067-1/ %R 10.4153/CMB-1994-067-1 %F 10_4153_CMB_1994_067_1