@inbook {188,
	title = {Towards Pervasive Eye Tracking using Low-level Image Features},
	booktitle = {Proceedings of the Symposium on Eye Tracking Research and Applications},
	series = {ETRA {\textquoteright}12},
	year = {2012},
	pages = {261-264},
	publisher = {ACM},
	organization = {ACM},
	isbn = {978-1-4503-1221-9},
	author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen}
}
