@inproceedings{SIGMOD-1986-Chen,
	author        = "Qiming Chen",
	booktitle     = "{Proceedings of the 16th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD86/P281.PDF",
	doi           = "10.1145/16894.16882",
	pages         = "281--292",
	title         = "{A Rule-Based Object/Task Modelling Approach}",
	year          = 1986,
}