Hans-Christian Hege Raghu Machiraju Torsten Möller Milos Srámek 6th Eurographics / IEEE VGTC International Symposium on Volume Graphics, VG@Eurographics 2007, Prague, Czech Republic, September 3-4, 2007 Eurographics Association VG@Eurographics 2007 978-3-905674-03-3 http://diglib.eg.org/handle/10.2312/470 db/conf/vg/vg2007.html