Nirmal J. Patel, James Clawson, Thad Starner. A model of two-thumb chording on a phone keypad. In Reinhard Oppermann, Markus Eisenhauer, Matthias Jarke, Volker Wulf, editors, Proceedings of the 11th Conference on Human-Computer Interaction with Mobile Devices and Services, Mobile HCI 2009, Bonn, Germany, September 15-18, 2009. ACM International Conference Proceeding Series, ACM, 2009. [doi]
Abstract is missing.