Acta Geographica Sinica >
1981 , Vol. 36 >Issue 2: 209 - 215
DOI: https://doi.org/10.11821/xb198102009
Online published: 1981-04-15
Su Lianbi . [J]. Acta Geographica Sinica, 1981 , 36(2) : 209 -215 . DOI: 10.11821/xb198102009
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