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| 1998, Vol. 1(1): 4-5 DOI: | ||
| The environmental and hydrogeologic problems in Xiuwu region on the north bank of Yellow river | ||
| Gao Qingwu, Zhang Yusong and Niu Jincai | ||
| Institute of Geology, SSB, Beijing 100029, China | ||
| Received null Revised null | ||
| Supporting info | ||
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