%0 Journal Article %A S. Kolmer %T Generalization of the symplectic modular group %J Acta Arithmetica %D 1965 %P 281-291 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-11-3-281-291/ %R 10.4064/aa-11-3-281-291 %G en %F 10_4064_aa_11_3_281_291