M. Cordeil, A. Cunningham, T. Dwyer, B. Thomas, and K. Marriott. Proceedings of the 30th Annual ACM Symposium on User Interface Software and Technology, page 71–83. New York, NY, USA, Association for Computing Machinery, (2017)
T. Höllerer, J. Kuchera-Morin, and X. Amatriain. Proceedings of the 2007 Workshop on Emerging Displays Technologies: Images and beyond: The Future of Displays and Interacton, page 3–es. New York, NY, USA, Association for Computing Machinery, (2007)