@inproceedings{RTA-1987-Qian,
	author        = "Zhenyu Qian",
	booktitle     = "{Proceedings of the Second International Conference on Rewriting Techniques and Applications}",
	doi           = "10.1007/3-540-17220-3_15",
	editor        = "Pierre Lescanne",
	isbn          = "3-540-17220-3",
	pages         = "168--179",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Structured Contextual Rewriting}",
	volume        = 256,
	year          = 1987,
}