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Author: Sun Wei Knerr Béatrice Kuhn Michael
Publisher: IP Publishing Ltd
ISSN: 0030-7270
Source: Outlook on Agriculture, Vol.38, Iss.1, 2009-03, pp. : 55-62
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Abstract
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International Journal of Agricultural Resources, Governance and Ecology, Vol. 3, Iss. 3-4, 2005-01 ,pp. :