@article{1103055647, author = {Klein, Andreas}, title = {Exterior sets of hyperbolic quadrics}, journal = {Bull. Belg. Math. Soc. Simon Stevin}, volume = {7}, number = {4}, year = {2000}, pages = { 321-331}, language = {en}, url = {http://dml.mathdoc.fr/item/1103055647} }
Klein, Andreas. Exterior sets of hyperbolic quadrics. Bull. Belg. Math. Soc. Simon Stevin, Tome 7 (2000) no. 4, pp. 321-331. http://gdmltest.u-ga.fr/item/1103055647/