共 50 条
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- [2] Presidential address: Coal - An industry in change [J]. JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1999, 99 (05): : 227 - 241
- [4] SOUTH-AFRICAN SOCIETY OF PATHOLOGISTS - PRESIDENTIAL ADDRESS [J]. SOUTH AFRICAN MEDICAL JOURNAL, 1972, 46 (46): : 1763 - &
- [5] Presidential address: Has the South African narrow reef mining industry learnt how to change? [J]. JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 2007, 107 (09): : 557 - 565
- [6] MEETING OUR CURRENT CHALLENGES - PRESIDENTIAL-ADDRESS [J]. GEOPHYSICS, 1974, 39 (02) : 232 - 234
- [7] ROLE OF RESEARCH AND DEVELOPMENT IN SOUTH-AFRICAN GOLD-MINING INDUSTRY - PRESIDENTIAL-ADDRESS [J]. JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1976, 77 (03): : 64 - 75
- [9] Presidential address on the present position and future work of the British Medical Association [J]. BRITISH MEDICAL JOURNAL, 1900, 1900 : 1363 - 1366