@inproceedings{CHI-1991-ChienFRH,
	author        = "Jen-Hsien Chien and Sheng-Tsai Fu and Christopher Rougff and Ellis Horowitz",
	booktitle     = "{Proceedings of the Ninth ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/108844.108982",
	isbn          = "0-89791-383-3",
	pages         = "419--420",
	publisher     = "{ACM}",
	title         = "{RPP: a system for prototyping user interfaces}",
	year          = 1991,
}