%0 Journal Article %A Rankin, S. A. %T Orbital Lattices of SL+ (2, Z) %J Canadian mathematical bulletin %D 1974 %P 87-90 %V 17 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-015-6/ %R 10.4153/CMB-1974-015-6 %F 10_4153_CMB_1974_015_6