@inbook {45,
	title = {Automatic Facial Expression Recognition},
	booktitle = {Social Emotions in Nature and Artifact},
	year = {2013},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	author = {J. Whitehill and M. Bartlett and J. Movellan},
	editor = {J. Gratch and S. Marsella}
}