@article{GDZPPN002400782, title = {A Reduction Theory for Symplectic Matrices.}, journal = {Mathematische Zeitschrift}, volume = {99}, year = {1967}, pages = {213-244}, zbl = {0153.05302}, url = {http://dml.mathdoc.fr/item/GDZPPN002400782} }
Christian, Ulrich. A Reduction Theory for Symplectic Matrices.. Mathematische Zeitschrift, Tome 99 (1967) pp. 213-244. http://gdmltest.u-ga.fr/item/GDZPPN002400782/