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Ecological security assessment of Qiandao Lake based on catastrophe theory(基于突变级数法的千岛湖流域生态安全评价) Dahkki LIYanan(李亚男), YUJie(俞洁), WANGFeier(王飞儿), SHENKaili(申开丽)
Almmustuhtton 2014-11-01
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