@inproceedings{ICRE-2000-NguyenS,
	author        = "LeMai Nguyen and Paul A. Swatman",
	booktitle     = "{Proceedings of the Fourth International Conference on Requirements Engineering}",
	doi           = "10.1109/ICRE.2000.855599",
	isbn          = "0-7695-0565-1",
	pages         = "130--139",
	publisher     = "{IEEE Computer Society}",
	title         = "{Essential and Incidental Complexity in Requirements Models}",
	year          = 2000,
}