@inproceedings{MSR-2011-KarusG,
	author        = "Siim Karus and Harald C. Gall",
	booktitle     = "{Proceedings of the Eighth International Working Conference on Mining Software Repositories}",
	doi           = "10.1145/1985441.1985447",
	isbn          = "978-1-4503-0574-7",
	pages         = "13--22",
	publisher     = "{ACM}",
	title         = "{A study of language usage evolution in open source software}",
	year          = 2011,
}