@inproceedings{ssd-normal,
 author = {Merry, Bruce and Marais, Patrick and Gain, James},
 title = {Normal Transformations for Articulated Models},
 booktitle = {ACM SIGGRAPH 2006 Sketches},
 series = {SIGGRAPH '06},
 year = {2006},
 isbn = {1-59593-364-6},
 location = {Boston, Massachusetts},
 articleno = {134},
 url = {http://doi.acm.org/10.1145/1179849.1180017},
 doi = {10.1145/1179849.1180017},
 acmid = {1180017},
 publisher = {ACM},
 address = {New York, NY, USA},
}