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\bibitem{Barton+Karathanasis1997} Barton, C. D., \& Karathanasis, A. D. (1997). Aerobic and anaerobic metal attenuation processes in a constructed wetland treating acid mine drainage. In \textit{AAPG Eastern Section and the Society for Organic Petrology joint meeting; abstracts} (1545). 81: AAPG Bulletin.

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