Rod Rivers. Human computer interaction division Logica Cambridge LTD., UK. In Scott P. Robertson, Gary M. Olson, Judith S. Olson, editors, Conference on Human Factors in Computing Systems, CHI 1991, New Orleans, LA, USA, April 27 - May 2, 1991, Proceedings. pages 481-482, ACM, 1991. [doi]
Abstract is missing.