A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Ruyu Yuan, Tianyuan Zheng, Xilai Zheng, Dongsheng Liu, Jia Xin, Lu Yu, Guanqun Liu. "Identification of groundwater nitrate pollution sources in agricultural area using PCA and SIAR methods." Episodes 43.2 (2020)