@inproceedings{CHI-2009-GrossmanFA,
	author        = "Tovi Grossman and George W. Fitzmaurice and Ramtin Attar",
	booktitle     = "{Proceedings of the 27th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1518701.1518803",
	isbn          = "978-1-60558-246-7",
	pages         = "649--658",
	publisher     = "{ACM}",
	title         = "{A survey of software learnability: metrics, methodologies and guidelines}",
	year          = 2009,
}