@ARTICLE {
	AUTHOR = "Pablo Barcel{\'o} and Diego Figueira and Leonid Libkin",
	TITLE ="Graph Logics with Rational Relations",
	JOURNAL = "Logical Methods in Computer Science (LMCS)",
	VOLUME = "9",
	NUMBER = "3",
	PAGES = "article 1",
	MONTH = "Jul",
	YEAR = "2013",
	ISSN = "1860-5974"
	}