Tatyana Alexandrova and Alexandr Alexandrov and Nadezhda Nikolaeva, Precious and Rare Metals in Overburden Carbonaceous Rocks: Methods of Extraction. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. September 2015, vol. 107(11). 1307 - 1314 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10002678.