id	domain	url
ap-1295	www.world-aluminium.org	http://www.world-aluminium.org/?pg=107
ap-1295	www.chemicool.com	http://www.chemicool.com/elements
ap-1295	www.keytometals.com	http://www.keytometals.com/article12.htm
ap-1295	www.sciencedirect.com	http://www.sciencedirect.com