@inproceedings{REFSQ-2009-HerrmannWP,
	author        = "Andrea Herrmann and Armin Wallnöfer and Barbara Paech",
	booktitle     = "{Proceedings of the 15th International Working Conference on Requirements Engineering: Foundation for Software Quality}",
	doi           = "10.1007/978-3-642-02050-6_5",
	isbn          = "978-3-642-02049-0",
	pages         = "45--58",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Specifying Changes Only — A Case Study on Delta Requirements}",
	volume        = 5512,
	year          = 2009,
}