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5 2006-2013年京津冀研究关键词共现关系图 |
Fig. 5 Key words co-occurrence relationship of Beijing-Tianjin-Hebei research from 2006 to 2013 |