@inproceedings{PLDI-2011-AltidorHS,
	author        = "John Altidor and Shan Shan Huang and Yannis Smaragdakis",
	booktitle     = "{Proceedings of the 32nd Conference on Programming Language Design and Implementation}",
	doi           = "10.1145/1993498.1993569",
	editor        = "Mary W. Hall and David A. Padua",
	isbn          = "978-1-4503-0663-8",
	pages         = "602--613",
	publisher     = "{ACM}",
	title         = "{Taming the wildcards: combining definition- and use-site variance}",
	year          = 2011,
}