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| 1998, Vol. 1(1): 60-60 DOI: | ||
| System analysis of structure of water resources and eco-environment in Yellow river delta,China | ||
| An Yonghui, Pan Shibing and Zhang Fuchun | ||
| Institute of Hydrogeology and Engineering Geology Tech, Boding, China | ||
| Received null Revised null | ||
| Supporting info | ||
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