1. FIOR – The Esso fluid iron ore direct reduction process;Brown;Journal of Metals,1966
2. HIsmelt® – The alternative ironmaking technology;Burke,2002
3. Operational results of the circored fine ore direct reduction plant in Trinidad;Elmquist;Stahl und Eisen,2002
4. HYL direct reduction;Garza,2006
5. The sticking of iron ore during reduction by hydrogen in a fluidized bed;Gransden;Canadian Metallurgical Quarterly,1974