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Sheffield: Greenleaf, 2008
IPCC Arbeitsgruppe Landwirtschaft, Forstwirtschaft und andere menschliche Aktivitäten,
Deutschland Bundesrepublik Bundesminister für Ernährung, Landwirtschaft und Forsten
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Washington, DC: Inst. for International Economics, 1992
Pearman, G. I.
[Editor]
;
Freie Universität Berlin,
Workshop on Limiting the Greenhouse Effect: Options for Controlling Atmospheric Carbon Dioxide Accumulation 1990 Dahlem, Berlin