@inproceedings{CASE-2009-LiZF,
	author        = "Na Li and Li Zheng and Wei Feng",
	booktitle     = "{Proceedings of the Fifth International Conference on Automation Science and Engineering}",
	doi           = "10.1109/COASE.2009.5234167",
	isbn          = "978-1-4244-4578-3",
	pages         = "460--465",
	publisher     = "{IEEE}",
	title         = "{Analysis of two-loop closed production systems}",
	year          = 2009,
}