Estimating the effect of traffic congestion on accessibility to emergency medical care services: Take Guangzhou as an example
Jianguo CHEN, Suhong ZHOU, Lin LIU, Luzi XIAO, Guangwen SONG
PROGRESS IN GEOGRAPHY . 2016, (4): 431 -439 .  DOI: 10.18306/dlkxjz.2016.04.004