Research on the Association Network of Urban Agglomeration Based on Highway Traffic Flow——Taking BeijingTianjinHebei Urban Agglomeration as an Example
FU Yi ming, ZHAO Yan yun
JOURNAL OF HEBEI UNIVERSITY (Philosophy and Social Science) . 2016, (4): 91 -100 .  DOI: 10.3969/j.issn.1005-6378.2016.04.013