1. Acid pressure leaching of zinc concentrates with elemental sulphur as a by-product;Doyle,1978
2. Advances in the leaching of sulphide minerals;Wadsworth;Miner. Sci. Eng.,1972
3. Ferric ion as a leaching medium;Dutrizac;Miner. Sci. Eng.,1974
4. A kinetic study on the pressure leaching of sphalerite;Jan;Metall. Trans. B,1976
5. A kinetic study of the dissolution of natural and synthetic sphalerite in aqueous sulphuric acid and in acidic ferric sulphate media;Verbaan,1977