北京市等时间交通圈的范围、形态与结构特征

陈卓, 金凤君

Scope, shape, and structural characteristics of traffic circles of equal travel time in Beijing

Zhuo CHEN, Fengjun JIN

地理科学进展 . 2016, (3): 389 -375 . DOI: 10.18306/dlkxjz.2016.03.013