1. N.B. Web-site references are not permanent documents and may change or become inaccessible with time.
2. Southern Mining. Web site on Chibuto deposit. http://www.southern-mining.co.za/corridorsands/corridorsands.htm.
3. Billiton web site (plus search in Moebase or Tigen). http://www.billiton.com/.
4. Kenmare web site on Moma-Congolene deposit. http://www.minesite.com/congolene.html.
5. Norconsult. Mocambique, iron and steel project. Norconsult AS., Hovik, Norway, March 1979.