@Inproceedings { davidovic:wscg2011,
   author = {Davidovic, Tomas and Marsalek, Lukas and Slusallek, Philipp},
   title = {Performance Considerations When Using a Dedicated Ray Traversal Engine},
   year = {2011},
   month = {2},
   day = {1},
   url = {http://graphics.cs.uni-saarland.de/?id=davidovicwscg2011},
   booktitle = {19th International Conference on Computer Graphics, Visualization and Computer Vision 2011 (WSCG 2011) Pilsen},
   state = {unpublished}
}