GEOGRAPHICAL RESEARCH >
2004 , Vol. 23 >Issue 1: 135 - 136
DOI: https://doi.org/10.11821/yj2004010016
Online published: 2004-02-15
Xu Tianxiang, Ye Bing . [J]. GEOGRAPHICAL RESEARCH, 2004 , 23(1) : 135 -136 . DOI: 10.11821/yj2004010016
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