@techreport { dolog-elena-d23-,
	title = {Artefacts and Service Network v3 (D2.3)},
	year = {2004},
	institution = {L3S Research Center, University of Hannover},
	type = {Deliverable of FP5 EU/IST {Elena} project IST-2001-37264},
	address = {Hannover, Germany},
	URL = {http://www.elena-project.org/images/other/D2_3_final.PDF},
	author = {Peter Dolog and Wolfgang Nejdl and Daniel Olmedilla (eds.)}
}