@inproceedings{CHI-1989-Olsen,
	author        = "Dan R. Olsen Jr.",
	booktitle     = "{Proceedings of the Seventh ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/67449.67485",
	pages         = "171--176",
	publisher     = "{ACM}",
	title         = "{A programming language basis for user interface}",
	year          = 1989,
}