Submitted on: 22 July 2004.
Revised on: 18 September 2004.
Accepted on: 19 October 2004.
___________________Journal of Southern Hemisphere Earth Systems Science
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Submitted on: 03 March 2004.
Revised on: 21 April 2004.
Accepted on: 09 June 2004.
___________________Journal of Southern Hemisphere Earth Systems Science
Submitted on: 13 July 2014.
Revised on: 24 September 2014.
Accepted on: 11 November 2014.
___________________Journal of Southern Hemisphere Earth Systems Science
Submitted on: 05 January 2014.
Revised on: 10 February 2014.
Accepted on: 27 March 2014.
___________________Journal of Southern Hemisphere Earth Systems Science
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Submitted on: 01 November 2005.
Revised on: 29 January 2006.
Accepted on: 12 February 2006.
___________________Journal of Southern Hemisphere Earth Systems Science
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