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\bibitem{Qi_etal2019} Qi, H., Ma, C., He, Z., Hu, X., \& Gao, L. (2019). Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China. \textit{Sci Total Environ}, \textit{650}(Pt 1), 878--890.

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