@inproceedings{ICSE-1998-Kajko-Mattsson,
	author        = "Mira Kajko-Mattsson",
	booktitle     = "{Proceedings of the 20th International Conference on Software Engineering}",
	doi           = "10.1109/ICSE.1998.671597",
	editor        = "Koji Torii and Kokichi Futatsugi and Richard A. Kemmerer",
	isbn          = "0-8186-8368-6",
	pages         = "422--425",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Conceptual Model of Software Maintenance}",
	year          = 1998,
}