@ARTICLE {
	AUTHOR = "Andr{\'e}s Letelier and Jorge P{\'e}rez and Reinhard Pichler and Sebastian Skritek",
	TITLE ="Static Analysis and Optimization of Semantic Web Queries",
	JOURNAL = "Transactions on Database Systems (TODS)",
	VOLUME = "38",
	NUMBER = "4",
	PAGES = "article 25",
	MONTH = "Dec",
	YEAR = "2013",
	PUBLISHER = "ACM Press",
	ADDRESS = "New York, NY, USA",
	ISSN = "0362-5915"
	NOTE = "Invited as one of the best papers from PODS 2012",
	}