PDF(1364 KB)
Application Schema of National Resources and Environment Information Classification and Coding
LI Xintong, HE Jianbang, BI Jiantao
Acta Geographica Sinica ›› 2002, Vol. 57 ›› Issue (7s) : 9-17.
PDF(1364 KB)
PDF(1364 KB)
Application Schema of National Resources and Environment Information Classification and Coding
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