@conference {DBLP:conf/dmdw/VassiliadisSS02,
	title = {Modeling ETL activities as graphs},
	booktitle = {Design and Management of Data Warehouses 2002, Proceedings of the 4th Intl. Workshop DMDW{\textquoteright}2002, Toronto, Canada, May 27, 2002},
	year = {2002},
	pages = {52{\textendash}61},
	url = {http://ceur-ws.org/Vol-58/simitsis.pdf},
	author = {Panos Vassiliadis and Alkis Simitsis and Spiros Skiadopoulos}
}
