Jacob O. Wobbrock, Duen Horng Chau, Brad A. Myers. An alternative to push, press, and tap-tap-tap: gesturing on an isometric joystick for mobile phone text entry. In Mary Beth Rosson, David J. Gilmore, editors, Proceedings of the 2007 Conference on Human Factors in Computing Systems, CHI 2007, San Jose, California, USA, April 28 - May 3, 2007. pages 667-676, ACM, 2007. [doi]
Abstract is missing.