William Walton
- (2008): Innovative Foundation Design at Complex Urban Sites. Presented at: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008.
- (2008): Geotechnical Engineering of the 600 m Chicago Spire. Presented at: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008.