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- [4] TRENDS IN SURFACE DRILLING AND BLASTING CANADIAN MINING AND METALLURGICAL BULLETIN, 1968, 61 (678): : 1175 - &
- [6] TRENDS IN SURFACE DRILLING AND BLASTING CANADIAN MINING AND METALLURGICAL BULLETIN, 1968, 61 (671): : 293 - &
- [7] Prediction of drillability in hard rock tunnelling by drilling and blasting TUNNELS FOR PEOPLE, VOLS 1 AND 2, 1997, : 103 - 108
- [8] New trends in drilling and blasting technology International Journal of Surface Mining, Reclamation and Environment, 2000, 14 (04): : 305 - 315