@inproceedings{KDHS04,
 author = {Keim, Daniel A. and Deussen, Oliver and Hansen, Charles D. and Saupe, Dietmar},
 booktitle = {Proceedings of the Symposium on Visualization, Konstanz, Germany, May 19-21},
 publisher = {Eurographics Association},
 title = {VisSym 2004},
 year = {2004}
}