WASET
    A. Mavrikos and  N. Petsas and  E. Kaltsi and  D. Kaliampakos,  Evaluation of the Environmental Risk from the Co-Deposition of Waste Rock Material and Fly Ash.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 385 - 391
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9998419.