1. Desulfurization of hot coal gas by zinc ferrite;Grindley;Acid and Sour Gas Treating Processes,1984
2. S.K. Gangwal, S.M. Haskirs, J.M. Stogner, M.C. Woods and T.N. Rogers, Bench Scale Testing of Novel High-Temperature Desulfurization Sorbents, Final Report, US Department of Energy/METC, DE-AC21-86MC23126.
3. Interaction of H2S with zinc titanate in the presence of H2 and CO
4. Interaction of SO2 and O2 mixtures with CaO (100) and sodium deposited on CaO (100)
5. Handbook of X-Ray Photoelectron Spectroscopy;Wagner,1979