@article{Papaioannou:2010:RVA:1850479.1850494,
 author = {Papaioannou, Georgios and Menexi, Maria Lida and Papadopoulos, Charilaos},
 title = {Real-Time Volume-Based Ambient Occlusion},
 journal = {IEEE Transactions on Visualization and Computer Graphics},
 volume = {16},
 issue = {5},
 month = {September},
 year = {2010},
 issn = {1077-2626},
 pages = {752--762},
 numpages = {11},
 url = {http://dx.doi.org/10.1109/TVCG.2010.18},
 doi = {http://dx.doi.org/10.1109/TVCG.2010.18},
 acmid = {1850494},
 publisher = {IEEE Educational Activities Department},
 address = {Piscataway, NJ, USA},
 keywords = {Shading, shadowing, raytracing, volume visualization, visibility, ambient occlusion, ray marching.},
}