@article{GDZPPN000366277, title = {Arrangements of Oriented Hyperplanes.}, journal = {Discrete \& computational geometry}, volume = {10}, year = {1993}, pages = {435-446}, zbl = {0788.52014}, url = {http://dml.mathdoc.fr/item/GDZPPN000366277} }
Linhart, J. Arrangements of Oriented Hyperplanes.. Discrete & computational geometry, Tome 10 (1993) pp. 435-446. http://gdmltest.u-ga.fr/item/GDZPPN000366277/