1950 年代以来中国铁路物流的交流格局及演变特征

王成金

Railway Cargo Flow in China since 1950s: Spatial Configur ation and Its Evolution

WANG Chengjin

地理科学进展 . 2008, (1): 46 -55 . DOI: 10.11820/dlkxjz.2008.01.007