@inproceedings{IFL-2013-DanvyTZ,
	author        = "Olivier Danvy and Peter Thiemann and Ian Zerny",
	booktitle     = "{Proceedings of the 25th Symposium on Implementation and Application of Functional Languages}",
	doi           = "10.1145/2620678.2620687",
	isbn          = "978-1-4503-2988-0",
	pages         = "85",
	publisher     = "{ACM}",
	title         = "{Circularity and λ Abstraction: From Bird to Pettorossi and back}",
	year          = 2013,
}