作者单位：
Division of Resource Economics, Faculty of Agriculture and Horticulture, Humboldt–Universitat zu Berlin, Unter den Linden 6, D–10999 Berlin, Germany
[1]
Department of External Environment for Agriculture and Policy Analysis, Leibniz Institute of Agricultural Development in Central and Eastern Europe (IAMO), Theodor–Lieser–Str.2, D–06120 Halle (Saale), Germany
[2]
发布时间
2013-11-20
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