EN中文
Spatial Analysis of Economic Dipparities of County Level in Huaihai Economic Zone
QIU Fang-dao, ZHU Chuan-geng, TONG Lian-jun, YANG Ru-shu
SCIENTIA GEOGRAPHICA SINICA . 2009, (1): 56 -63 .  DOI: 10.13249/j.cnki.sgs.2009.01.56