Edward Clarkson, James Clawson, Kent Lyons, Thad Starner. An empirical study of typing rates on mini-QWERTY keyboards. In Gerrit C. van der Veer, Carolyn Gale, editors, Extended Abstracts Proceedings of the 2005 Conference on Human Factors in Computing Systems, CHI 2005, Portland, Oregon, USA, April 2-7, 2005. pages 1288-1291, ACM, 2005. [doi]
Abstract is missing.