@inbook {189, title = {SideWays: a Gaze Interface for Spontaneous Interaction with Situated Displays}, booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI {\textquoteright}13)}, year = {2013}, pages = {851-860}, publisher = {ACM}, organization = {ACM}, author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen} } @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} } @inbook {187, title = {Discrimination of Gaze Directions using Low-level Eye Image Features}, booktitle = {Proceedings of the 1st international workshop on pervasive eye tracking 38; mobile eye-based interaction}, series = {PETMEI {\textquoteright}11}, year = {2011}, pages = {9-14}, publisher = {ACM}, organization = {ACM}, isbn = {978-1-4503-0930-1}, author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen} }