The activities of Soviet intelligence service among Russian emigration in post-war Northern China (according to the memoirs of N. A. Martynov) by M. V. Krotova

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Measuring coordination between land ecological security and high-quality economic development: a case of the Beijing-Tianjin-Hebei region by Xiaoyong Zhong, Xiaoyong Zhong, Dongyan Guo, Yandong Tang, Yafei Chuai

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Prediction and Evaluation of Water Resource Ecological Footprint in Beijing under the Influence of Changing Environment by QIN Huanhuan, HUANG Lixiang, WANG Jianquan

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Integrated Evaluation of the Ecological Security Pattern in Central Beijing Using InVEST, MSPA, and Multifactor Indices by Xiaodan Li, Haoyu Tao, Jing Wang, Bo Zhang, Zhen Liu, Zhiping Liu, Jing Li

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Considerations on Water Network Construction in Beijing by WANG Tao, LI Liqin, WU Xia, WANG Yan

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