1. Potential for the mechanisation of stoping in gold mines;Joughin;J. S. Afr. Inst. Min. Metall.,1976
2. High pressure water as an energy source in deep-level mines;Gundersen;S. Afr. Mech. Eng. J.,1987
3. The repetitive impact wear of steels for hy-dropowered mining machinery;Fricke,1991
4. Kenngroessen und Verschleiss beim Stoss Metallischer Werkstoffe;Wellinger;Wear,1969
5. Microstructure and the Wear of Materials;Gahr,1987