Dinis, M. , Vila, M. , Fiúza, A. , Futuro, A. , Nunes, C.. "Co-Disposal of Coal Ash with Mine Tailings in Surface Paste Disposal Practices: A Gold Mining Case Study". World Academy of Science, Engineering and Technology, Open Science Index 115, International Journal of Geological and Environmental Engineering (2016), 10(7), 754 - 760.