Geo-influence of the great powers in South America
ZHANG Jing1, TANG Qinghui2, LIU Jianzhong3, GONG Maoyu1, YE Kaizhen1
1.Institute of Geography, The PLA Information Engineering University, Zhengzhou 450052, China 2.32022 PLA Troops, Wuhan 430070, China 3.Research Institute for Smarter Cities,Zhengzhou University, Zhengzhou 450001, China