@article{ehs-suicu-04 
, author =  "E. Ezra and D. Halperin and M. Sharir" 
, title =   "Speeding Up the Incremental Construction of the Union of Geometric Objects in Practice" 
, journal = "Computational Geometry: Theory and Applications" 
, volume = "27" 
, year =    2004 
, pages =   "63--85" 
, note =  "Special issue, papers from the 18th European Workshop on Computational Geometry, Warsaw, April 2002" 
} 

@inproceedings{ehs-suicu-02 
, author = "E. Ezra and D. Halperin and M. Sharir" 
, title =  "Speeding Up the Incremental Construction of the Union of Geometric Objects in Practice" 
, booktitle = "Proc. 10th European Symposium on Algorithms (ESA)" 
, site = "Rome" 
, year = 2002 
, pages = "473--484" 
}