@inproceedings{PPDP-2014-MehnerSSV,
	author        = "Stefan Mehner and Daniel Seidel and Lutz Straßburger and Janis Voigtländer",
	booktitle     = "{Proceedings of the 16th International Symposium on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/2643135.2643147",
	isbn          = "978-1-4503-2947-7",
	pages         = "19--30",
	publisher     = "{ACM}",
	title         = "{Parametricity and Proving Free Theorems for Functional-Logic Languages}",
	year          = 2014,
}