@inproceedings{RE-1993-SchouwenPM,
	author        = "A. John van Schouwen and David Lorge Parnas and Jan Madey",
	booktitle     = "{Proceedings of IEEE International Symposium on Requirements Engineering}",
	doi           = "10.1109/ISRE.1993.324857",
	isbn          = "0-8186-3120-1",
	pages         = "198--207",
	publisher     = "{IEEE}",
	title         = "{Documentation of requirements for computer systems}",
	year          = 1993,
}