@INPROCEEDINGS{I3D99, 
 author = {Heidrich, W. AND Westermann, R. AND Seidel, H.-P. AND Ertl, T.},
 title = "{Applications of Pixel Textures in Visualization and Realistic Image Synthesis}",
 booktitle = {ACM Symposium on Interactive 3D Graphics},
 year = {1999},
 organization = {ACM/Siggraph},
}