@article{01817533, title = {On the incidence structures of polar spaces and quadrics.}, journal = {Advances in Geometry}, volume = {2}, year = {2002}, pages = {201-213}, doi = {10.1515/advg.2002.008}, zbl = {1066.51001}, language = {en}, url = {http://dml.mathdoc.fr/item/01817533} }
Ferrara Dentice, Eva. On the incidence structures of polar spaces and quadrics.. Advances in Geometry, Tome 2 (2002) pp. 201-213. doi : 10.1515/advg.2002.008. http://gdmltest.u-ga.fr/item/01817533/