@inproceedings{khamis2018mobilehci,
 author = {Khamis, Mohamed and Alt, Florian and Bulling, Andreas},
 title = {The Past, Present, and Future of Gaze-enabled Handheld Mobile Devices: Survey and Lessons Learned}, 
 booktitle = {Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services},  
 series = {MobileHCI '18}, 
 year = {2018},
 url={https://doi.org/10.1145/3229434.3229452},
 doi ={10.1145/3229434.3229452},
 location = {Barcelona, Spain}, 
 publisher = {ACM}, 
 address = {New York, NY, USA},
}