@INPROCEEDINGS {
	AUTHOR = "Pablo Barcel{\'o} and Leonid Libkin and Juan Reutter",
	TITLE = "Parameterized Regular Expressions and their Languages",
	EDITOR = "Supratik Chakraborty and Amit Kumar",
	BOOKTITLE = "31st Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS)",
	PAGES = "351-362",
	MONTH = "Dec",
	YEAR = "2011",
	ADDRESS = "Mumbai, India",
	PUBLISHER = "IBFI Schloss Dagstuhl",
	SERIES ="Leibniz International Proceedings in Informatics (LIPIcs)",
	NUMBER = "13",
	ISBN = "978-3-939897-34-7",
	}