Cousins, Ashleigh, Robin W Hughes, David J McCalden, Dennis Y Lu, and Edward J Anthony. 2012. “Waste Classification of Slag Generated in a Pilot-Scale Entrained-Flow Gasifier.” Coal Combustion and Gasification Products 4 (2): 37–44. https://doi.org/10.4177/CCGP-D-11-00011.1.