@inproceedings{ICPR-2008-ZhangTJ,
	author        = "Lei Zhang and Yan Tong and Qiang Ji",
	booktitle     = "{Proceedings of the 19th International Conference on Pattern Recognition}",
	doi           = "10.1109/ICPR.2008.4761187",
	isbn          = "978-1-4244-2175-6",
	pages         = "1--4",
	publisher     = "{IEEE Computer Society}",
	title         = "{Interactive labeling of facial action units}",
	year          = 2008,
}