inproceedings{sh-icvdt-02 
, author =  "H. Shaul and D. Halperin" 
, title =   "Improved Construction of Vertical Decompositions of 3D Arrangements" 
, booktitle = "Proc. 18th ACM Symposium on Computational Geometry" 
, site =    "Barcelona" 
, year =    2002 
, pages =   "283--292" 
}