@inproceedings{SEFM-2006-BanachD,
	author        = "Richard Banach and John Derrick",
	booktitle     = "{Proceedings of the Fourth IEEE International Conference on Software Engineering and Formal Methods}",
	doi           = "10.1109/SEFM.2006.17",
	isbn          = "0-7695-2678-0",
	pages         = "60--69",
	publisher     = "{IEEE Computer Society}",
	title         = "{Filtering Retrenchments into Refinements}",
	year          = 2006,
}