@inproceedings{IFM-1999-BanachP,
	author        = "Richard Banach and Michael Poppleton",
	booktitle     = "{Proceedings of the First International Conference on Integrated Formal Methods}",
	isbn          = "1-85233-107-0",
	pages         = "457--476",
	publisher     = "{Springer-Verlag}",
	title         = "{Retrenchment and Punctured Simulation}",
	year          = 1999,
}