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Ziemkiewicz, P., Skousen, J., & Simmons, J. (2001). Cost benefit analysis of passive treatment systems. |
Ziemkiewicz, P. F., Skousen, J. G., Skousen, J. G., & Ziemkiewicz, P. F. (1996). Prevention of acid mine drainage by alkaline addition. In Acid mine drainage control and treatment. Morgantown: West Virginia University and the National Mine Land Reclamation Center. |