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JIN Hui, DONG Yuan. Historical Investigation of Ecological Environment and Disasters around Beijing[J]. Journal of Beijing Forestry University (Social Science), 2007, 6(3): 50-58.
Citation: JIN Hui, DONG Yuan. Historical Investigation of Ecological Environment and Disasters around Beijing[J]. Journal of Beijing Forestry University (Social Science), 2007, 6(3): 50-58.

Historical Investigation of Ecological Environment and Disasters around Beijing

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