1. Re-evaluating Diversity Measures: Calibrating for Scope to Capture the Distribution Effect;Acar;Vikalapa,2003
2. The Lifecycle of Copper, Its Co-products and By-products;Ayres,2002
3. Fluorspar Mineral Profile;Bide,2011
4. Nickel Mineral Profile;Bide,2008
5. Amid tension, China blocks vital exports to Japan;Bradsher,2010