@inproceedings{SEKE-1989-PanYC,
	author        = "Miin-Jeng Pan and Chien-Chiao Yang and Ping-Long Chang",
	booktitle     = "{Proceedings of the First International Conference on Software Engineering and Knowledge Engineering}",
	pages         = "128--133",
	publisher     = "{Knowledge Systems Institute}",
	title         = "{Conceptual Modeling of Software Requirements}",
	year          = 1989,
}