1. A process for direct leaching zinc sulphide concentrates with sulphuric acid and oxygen under pressure;Forward;J. Metals,1959
2. Treatment of copper-zinc concentrates by pressure hydrometallurgy;Evans,1964
3. Recovery of zinc and elemental sulphur from sulphide concentrates by aqueous oxidation under pressure;Kunda,1965
4. Recovery of zinc and lead from complex low grade sulphide concentrates by acid pressure leaching;Mackiw,1967
5. Accelerated pressure leaching of zinc sulphide concentrates;Veltman,1968