@article{02040369, title = {Line-hyperline pairs of projective spaces and fundamental subgroups of linear groups.}, journal = {Advances in Geometry}, volume = {4}, year = {2004}, pages = {83-103}, doi = {10.1515/advg.2004.009}, zbl = {1046.51001}, language = {en}, url = {http://dml.mathdoc.fr/item/02040369} }
Gramlich, Ralf. Line-hyperline pairs of projective spaces and fundamental subgroups of linear groups.. Advances in Geometry, Tome 4 (2004) pp. 83-103. doi : 10.1515/advg.2004.009. http://gdmltest.u-ga.fr/item/02040369/