1. Ahnberg H and Larsson R (2012) Strength Degradation of Clay due to Cyclic Loadings and Enforced Deformation. Swedish Geotechnical Institute, Linkoping, Sweden, Report 75.
2. BRE (Building Research Establishment) (2004) Working Platforms for Tracked Plant: Good Practice Guide to the Installation, Maintenance and Repair of Ground-Supported Working Platforms. BRE Press, Watford, UK, Building Research Establishment Report BR470.
3. Jewell RA (1996) Soil Reinforcement with Geotextiles. Construction Industry Research and Information Association, London, UK, Ciria Special Report 123.