@inproceedings{fsh-agas-08} 
, author = "E. Fogel, O. Setter and D. Halperin" 
, title = "Arrangements of geodesic arcs on the sphere" 
, booktitle = "In Proceedings of the 24th ACM Annual Symposium on Computational Geometry" 
, site = "" 
, year = 2008
, pages = 218-219 
}