@conference { WS:2002, title = {Topology-based Transfer Function Design}, booktitle = {Proceedings of the 2nd IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP) 2002}, year = {2002}, pages = {527-537}, publisher = {ACTA Press}, organization = {ACTA Press}, address = {Anaheim, CA, USA}, author = {Weber, G.H. and Gerik Scheuermann} }