Ilyushechkin*, Alexander, Daniel Roberts, and David Harris. 2011. “Compositional Variations in Pilot Gasifier and Laboratory-Produced Slags and Their Impacts on Slag Viscosity and Coal Assessment.” Coal Combustion and Gasification Products 3 (1): 22–27. https://doi.org/10.4177/CCGP-D-10-00009.1.