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郝海广, 李秀彬, 张继平
Impacts of Part-time Farming on Agricultural Land Use in Ecologically-vulnerable Areas in North China
HAO Haiguang, LI Xiubin, ZHANG Jiping
资源与生态学报 . 2013, (1): 70 -79 .  DOI: 10.5814/j.issn.1674-764x.2013.01.010