@book{66499,
	author = {Burger, Markus. and Graeber, Bernhard. and ebrary, Inc.},
	title = {Managing energy risk},
	publisher = {John Wiley & Sons,},
	year = {c2007.},
	series = {Wiley finance series},
	address = {Chichester, England ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10300926}
}