@article{PEPM-J-2007-CunhaV11,
	author        = "Alcino Cunha and Joost Visser",
	doi           = "10.1016/j.scico.2010.01.003",
	journal       = "{Science of Computer Programming}",
	number        = 6,
	pages         = "516--539",
	title         = "{Transformation of structure-shy programs with application to XPath queries and strategic functions}",
	volume        = 76,
	year          = 2011,
}