@inproceedings{SPLC-2009-ChenBA,
	author        = "Lianping Chen and Muhammad Ali Babar and Nour Ali",
	booktitle     = "{Proceedings of the 13th International Software Product Line Conference}",
	doi           = "10.1145/1753235.1753247",
	pages         = "81--90",
	publisher     = "{ACM}",
	series        = "{ACM International Conference Proceeding Series}",
	title         = "{Variability management in software product lines: a systematic review}",
	volume        = 446,
	year          = 2009,
}