@book{58532,
	author = {Quaschning, Volker,},
	title = {Understanding renewable energy systems /},
	publisher = {Earthscan,},
	year = {2005 [reprint 2006] },
	address = {London ;},
	note = {Based on the German book Regenerative Energiesysteme. 3rd ed. 2003.},
	url = {http://www.loc.gov/catdir/toc/ecip051/2004022852.html}
}