Thomas Schultz 0001 Holger Theisel Hans-Peter Seidel Segmentation of DT-MRI Anisotropy Isosurfaces. 187-194 2007 conf/vissym/2007 EuroVis https://doi.org/10.2312/VisSym/EuroVis07/187-194 db/conf/vissym/eurovis2007.html#SchultzTS07