A. Argiri and A. Molla and Tzouvalekas and E. Skoufogianni and N. Danalatos, A Study of Soil Heavy Metal Pollution in the Manganese Mining in Drama, Greece. journal = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2021, vol. 172(4). 147 - 150 [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10011996.