@inproceedings{CHI-1991-Johnson,
	author        = "Peter Johnson",
	booktitle     = "{Proceedings of the Ninth ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/108844.109010",
	isbn          = "0-89791-383-3",
	pages         = "475--476",
	publisher     = "{ACM}",
	title         = "{Human computer interaction laboratory Queen Mary and Westfield College University of London}",
	year          = 1991,
}