京津冀科技合作网络的演变特征及影响因素
席强敏, 李国平, 孙瑜康, 吕爽
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
地理学报
.
2022, (6): 1359
-1373
.
DOI: 10.11821/dlxb202206005
