@book{4263,
	author = {Geman, H�elyette. and ebrary, Inc.},
	title = {Risk management in commodity markets},
	publisher = {Wiley,},
	year = {c2008.},
	series = {Wiley finance series},
	address = {Chichester, West Sussex, England ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10278293}
}