@INPROCEEDINGS{DY:2010:VSSM,<br>
author = {Dong, Zhao and Yang, Baoguang},<br>
title = {Variance Soft Shadow Mapping},<br>
booktitle = {I3D '10: Proceedings of the 2010 symposium on Interactive 3D graphics and games, Poster},<br>
year = {2010},<br>
publisher = {ACM},<br>
}