@inproceedings{CHI-1989-Gutierrez,
	author        = "Oscar Gutierrez",
	booktitle     = "{Proceedings of the Seventh ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/67449.67499",
	pages         = "259--264",
	publisher     = "{ACM}",
	title         = "{Prototyping techniques for different problem contexts}",
	year          = 1989,
}