Evolutionary characteristics of science and technology cooperation network of Beijing-Tianjin-Hebei region and its influencing factors
XI Qiangmin, LI Guoping, SUN Yukang, LYU Shuang
Acta Geographica Sinica ›› 2022, Vol. 77 ›› Issue (6) : 1359-1373.
Evolutionary characteristics of science and technology cooperation network of Beijing-Tianjin-Hebei region and its influencing factors
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