Passengers' OD Temporal-spatial Distribution Characteristics of the External Traffic Hubs in Beijing
YANG Gege,SONG Ci,PEI Tao,ZHOU Chenghu,SHU Hua,ZHANG Jia
Journal of Geo-information Science . 2016, (10): 1374 -1383 .  DOI: 10.3724/SP.J.1047.2016.01374