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| 2011, Vol. 14(1): 54-58 DOI: | ||
| Application of principal component analysis to evaluation of black soil degradation in Jilin | ||
| NIU Cencen, WANG Qing, WEN Xiuyu, GUO Yuan, ZHAGN Penglei, ZHU Rongyue and HE Xianhui | ||
| College of Construction Engineering，Jilin University，Changchun 130026，China | ||
| Received null Revised null | ||
| Supporting info | ||
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