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  1. 1
    The Merrifield-Simmons Index and Hosoya Index of C(n,k,λ) Graphs

    The Merrifield-Simmons Index and Hosoya Index of C(n,k,λ) Graphs by Shaojun Dai, Ruihai Zhang

    Published 2012-01-01
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  2. 2
    Evaluation of land ecological security and driving factors in the Lower Yellow River Flood Plain based on quality, structure and function

    Evaluation of land ecological security and driving factors in the Lower Yellow River Flood Plain based on quality, structure and function by Ge Zhai, Peng Ren, Ruihai Zhang, Bei Wang, Maoxin Zhang, Tingting He, Jinliang Zhang

    Published 2025-01-01
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