@article{GDZPPN000364320,
title = {Combinatorial Complexity Bounds for Arrangements of Curves and Spheres.},
journal = {Discrete \& computational geometry},
volume = {5},
year = {1990},
pages = {99-160},
zbl = {0704.51003},
url = {http://dml.mathdoc.fr/item/GDZPPN000364320}
}
Edelsbrunner, H.; Welzl, E.; Guibas, L.J.; Clarkson, K.L.; Sharir, M. Combinatorial Complexity Bounds for Arrangements of Curves and Spheres.. Discrete & computational geometry, Tome 5 (1990) pp. 99-160. http://gdmltest.u-ga.fr/item/GDZPPN000364320/