@INPROCEEDINGS {
	AUTHOR = "Jorge P{\'e}rez and Reinhard Pichler and Emanuel Sallinger and Vadim Savenkov",
	TITLE = "Union and Intersection of Schema Mappings",
	BOOKTITLE = "6th Alberto Mendelzon International Workshop on Foundations of Data Management (AMW)",
	PAGES = "129-141",
	MONTH = "Jun",
	YEAR = "2012",
	ADDRESS = "Ouro Preto, Brazil",
	PUBLISHER = "CEUR Publications",
	SERIES ="CEUR Workshop Proceedings",
	}