1. A method for the determination of elemental sulphur on the surface of sulphide minerals;Allison;NIM Report No. 1495,1972
2. Introduction to Solids;Azaroff,1960
3. Colorimetric determination of elemental sulphur in hydrocarbons;Bartlett;Anal. Chem.,1954
4. Molecular composition of sulphur vapour;Berkowitz,1965
5. Leaching of mineral sulphides by selective oxidation at normal pressure;Bjorling,1973