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Submitted on: 29 December 1999.
Revised on: 26 January 2000.
Accepted on: 25 March 2000.
___________________AGRICULTURE AND HUMAN VALUES---SPRINGER
Submitted on: 27 October 2004.
Revised on: 31 January 2005.
Accepted on: 05 March 2005.
___________________AGRICULTURE AND HUMAN VALUES---SPRINGER