TY - Tropical Geography A1 - Leixian Guo, Xiaoli Wu, Xiaofang Guo, Xuejun Zhou, Changcheng Kan T1 - Urban Functions of Guangzhou and Shenzhen Focusing on the City Network Relationship: A Comparative Analysis on the Original Places of Air Passenger Flow Y1 - 2021-04-27 00:00:00.0 JF - Tropical Geography JO - Tropical Geography SP - 229 EP - 242 VL - 41 IS - 2 UR - {https://www.rddl.com.cn/EN/10.13284/j.cnki.rddl.003323} N1 - 10.13284/j.cnki.rddl.003323 ER -