%0 Journal Article %A Kechagias, Nondas E. %T A Note on Un × Um Modular Invariants %J Canadian mathematical bulletin %D 1997 %P 54-59 %V 40 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-006-7/ %R 10.4153/CMB-1997-006-7 %F 10_4153_CMB_1997_006_7