1. Engineering of refrigeration installations for cooling mines;van der Walt;J S Afr Mech Eng,1979
2. Considerations in the design of integrated systems for distributing refrigeration in deep mines;van der Walt;J Mine Ventilation Soc S Afr,1978
3. Analysing ventilation and cooling requirements for mines;van der Walt,1982
4. Cooling strategy and cooling requirements for the No. 6 and No. 6 north shafts of the Hartebeestfontein gold mine—Stilfontein;Smith,1981
5. An investigation into the use of water vapour refrigeration for cooling mine service water;Shone;Mine Ventilation Soc S Afr,1981