Ian Williams
- Drivers for the fly-tipping of household bulky waste in England. Dans: Proceedings of the Institution of Civil Engineers - Municipal Engineer, v. 164, n. 1 (mars 2011). (2011):
- Heathrow Terminal 5: tunnelled underground infrastructure. Dans: Proceedings of the Institution of Civil Engineers - Civil Engineering, v. 161, n. 5 (mai 2008). (2008):
- Des tunnels pour l'A380. 14 km de tunnels à construire en 4 ans sous Heathrow. Dans: Travaux, n. 805 (février 2004). (2004):