@article{GDZPPN002420740, title = {Polarization in the Classical Groups.}, journal = {Mathematische Zeitschrift}, volume = {162}, year = {1978}, pages = {217-234}, zbl = {0364.20048}, url = {http://dml.mathdoc.fr/item/GDZPPN002420740} }
Hesselink, Wim H. Polarization in the Classical Groups.. Mathematische Zeitschrift, Tome 162 (1978) pp. 217-234. http://gdmltest.u-ga.fr/item/GDZPPN002420740/