Stuart K. Card, Jock D. Mackinlay, George G. Robertson. The design space of input devices. In Jane Carrasco Chew, John A. Whiteside, editors, Conference on Human Factors in Computing Systems, CHI 1990, Seattle, WA, USA, April 1-5, 1990, Proceedings. pages 117-124, ACM, 1990. [doi]
Abstract is missing.