@INPROCEEDINGS {
	AUTHOR = "Leonid Libkin and Juan Reutter and Pablo Barcel{\'o}",
	TITLE = "Querying Graph Patterns",
	EDITOR = "Maurizio Lenzerini and Thomas Schwentick",
	BOOKTITLE = "30th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS)",
	PAGES = "199-210",
	MONTH = "Jun",
	YEAR = "2011",
	ADDRESS = "Athens, Greece",
	PUBLISHER = "ACM Press",
	SERIES ="ACM International Conference Proceeding Series",
	ISBN = "978-1-4503-0660-7",
	}