Jeffrey C. Jackson, Renate J. Roske-Hofstrand. Circling: a method of mouse-based selection without button presses. In Ken Bice, Clayton H. Lewis, editors, Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, CHI 1989, Austin, Texas, USA, April 30 - June 4, 1989. pages 161-166, ACM, 1989. [doi]
Abstract is missing.