基于CiteSpace方法的京津冀协同发展研究演化 |
孙威,毛凌潇 |
Evolution of research on Beijing-Tianjin-Hebei cooperative development based on CiteSpace method |
SUN Wei,MAO Lingxiao |
图6 2014-2017年京津冀研究关键词共现关系图 |
Fig. 6 Key words co-occurrence relationship of Beijing-Tianjin-Hebei research from 2014 to 2017 |