@book{137486,
	author = {S�rensen, Bent, and ebrary, Inc.},
	title = {Renewable energy},
	publisher = {Elsevier Academic Press,},
	year = {c2004.},
	address = {Amsterdam ;},
	edition = {3rd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10166980}
}