@article{GDZPPN000366757,
title = {On the Number of Views of Polyhedral Terrains.},
journal = {Discrete \& computational geometry},
volume = {11},
year = {1994},
pages = {177-182},
zbl = {0809.52011},
url = {http://dml.mathdoc.fr/item/GDZPPN000366757}
}
Sharir, M.; Agarwal, P.K. On the Number of Views of Polyhedral Terrains.. Discrete & computational geometry, Tome 11 (1994) pp. 177-182. http://gdmltest.u-ga.fr/item/GDZPPN000366757/