P. M. Varley
- British Tunnelling Machines in the First World War. In: Transactions of the Newcomen Society, v. 65, n. 1 (January 1993). (1993):
- The CERN LHC project. Design and construction of a large caverns in tight spaces. Presented at: AFTES – Toulouse 21-23 octobre 2002. (2002):