Colin Walker
- What can we learn from car sharing experiences in the UK?. Dans: Proceedings of the Institution of Civil Engineers - Transport, v. 164, n. 3 (août 2011). (2011):
- Design and Construction of the Shawfield Dalmarnock Smartbridge. Présenté pendant: Footbridge 2014 - Past, Present & Future, London, 16-18 July 2014. (2014):