Hancock, M., Carpendale, S., & Cockburn, A. (2007). Shallow-Depth 3D Interaction: Design and Evaluation of One-, Two- and Three-Touch Techniques Presented at the Proceedings of the 2007 CHI Conference on Human Factors in Computing Systems conference. San Jose, California, USA: ACM. https://doi.org/10.1145/1240624.1240798