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Submitted on: 20 January 2002.
Revised on: 22 February 2002.
Accepted on: 10 March 2002.
NATURAL RESOURCES JOURNAL---UNIV NEW MEXICO, SCH LAW
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Submitted on: 06 April 2011.
Revised on: 28 April 2011.
Accepted on: 19 May 2011.
NATURAL RESOURCES JOURNAL