@inproceedings{Hernell07,
author = {Frida Hernell and Patric Ljung and Anders Ynnerman},
title = {Efficient Ambient and Emissive Tissue Illumination using Local Occlusion in Multiresolution Volume Rendering},  
booktitle = {Eurographics/IEEE-VGTC Symposium on Volume Graphics}, 
year = {2007}, 
address= {Prague, Czech Republic},
}