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\bibitem{Blowes_etal1998} Blowes, D. W., Ptacek, C. J., Benner, S. G., McRae, C. W. T., \& Puls, R. W. (1998). Treatment of dissolved metals using permeable reactive barriers. \textit{Groundwater Quality: Remediation and Protection}, (250), 483--490.

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