@article{00702450,
title = {The upper bound conjecture for arrangements of half-spaces.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {35},
year = {1994},
pages = {29-35},
zbl = {0806.52011},
language = {en},
url = {http://dml.mathdoc.fr/item/00702450}
}
Linhart, Johann. The upper bound conjecture for arrangements of half-spaces.. Beiträge zur Algebra und Geometrie, Tome 35 (1994) pp. 29-35. http://gdmltest.u-ga.fr/item/00702450/