C. R. Speers
- The role of the engineer in controlling the excavation phase at the iSangoyana Rail tunnel. Dans: Tunnelling and Underground Space Technology, v. 4, n. 3 (janvier 1989). (1989):
- Support for tunnels subjected to changing rock loads: a comparison of design methods. Dans: Tunnelling and Underground Space Technology, v. 7, n. 1 (janvier 1992). (1992):