@article {roskill2011,
	title = {Silicon and Ferrosilicon: Global Industry Markets and Outlook, 13th edition},
	year = {2011},
	institution = {Roskill},
	address = {London},
	isbn = {978 0 86214 573 6},
	url = {http://www.roskill.com/reports/steel-alloys/silicon}
}
