@inproceedings{ICPR-2012-KoppenCCK,
	author        = "W. P. Koppen and Chi-Ho Chan and William J. Christmas and Josef Kittler",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "2740--2743",
	publisher     = "{IEEE Computer Society}",
	title         = "{An intrinsic coordinate system for 3D face registration}",
	year          = 2012,
}