Effects of natural weathering on intrinsic properties of coal and coke qualityDeepak Kumar, H.P. Tiwari, Vinod K. Saxena, Binod K. Khullar, Ranjan K. Singh and Sandip K. BhattachryaaMetall. Res. Technol., 116 1 (2019) 111DOI: https://doi.org/10.1051/metal/2018048
