@article{GDZPPN002444240,
title = {Symplectic classification of quadratic forms, and general Mehler formulas.},
journal = {Mathematische Zeitschrift},
volume = {220},
year = {1995},
pages = {413-450},
zbl = {0829.35150},
url = {http://dml.mathdoc.fr/item/GDZPPN002444240}
}
Hörmander, Lars. Symplectic classification of quadratic forms, and general Mehler formulas.. Mathematische Zeitschrift, Tome 220 (1995) pp. 413-450. http://gdmltest.u-ga.fr/item/GDZPPN002444240/