@inproceedings{RE-1993-HarkerED,
	author        = "Susan Harker and Ken D. Eason and John E. Dobson",
	booktitle     = "{Proceedings of IEEE International Symposium on Requirements Engineering}",
	doi           = "10.1109/ISRE.1993.324847",
	isbn          = "0-8186-3120-1",
	pages         = "266--272",
	publisher     = "{IEEE}",
	title         = "{The change and evolution of requirements as a challenge to the practice of software engineering}",
	year          = 1993,
}