@inproceedings{CHI-1989-RobertsE,
	author        = "Teresa L. Roberts and George Engelbeck",
	booktitle     = "{Proceedings of the Seventh ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/67449.67514",
	pages         = "331--337",
	publisher     = "{ACM}",
	title         = "{The effects of device technology on the usability of advanced telephone functions}",
	year          = 1989,
}