@InProceedings{jain00obsp, 
author = {Navendu Jain, Sorav Bansal, and Sanjiv Kapoor}, 
 title = {Efficient Object Ellipsoid Trees}, 
 booktitle = {Indian Conference on Computer Graphics, Vision and Image Processing (ICVGIP 2000)}, 
 year = 2000 , 
 month = Dec., 
 pdf = http://www.cs.utexas.edu/~nav/mypapers/G46.pdf
 category = "2000" 
 }