http://reply.papertrans.cn/1/11/1026/1026-31.png
Submitted on: 28 August 2002.
Revised on: 04 October 2002.
Accepted on: 18 November 2002.
___________________Agroecology and Sustainable Food Systems
Submitted on: 17 September 2004.
Revised on: 05 January 2005.
Accepted on: 12 February 2005.
___________________Agroecology and Sustainable Food Systems
Submitted on: 22 October 2008.
Revised on: 02 December 2008.
Accepted on: 03 January 2009.
___________________Agroecology and Sustainable Food Systems
Submitted on: 06 August 2004.
Revised on: 28 November 2004.
Accepted on: 11 December 2004.
___________________Agroecology and Sustainable Food Systems
Submitted on: 26 September 2013.
Revised on: 27 December 2013.
Accepted on: 29 January 2014.
___________________Agroecology and Sustainable Food Systems