1. Compressive behaviour after simulated service conditions of some foamed materials intended as orthotic shoe insoles;Campbell;J Rehabil Res Dev,1984
2. Compression testing of foamed plastics and rubbers for use as orthotic shoe insoles;Campbell;Prosthet Orthot Int,1982
3. A comparison of shoe insole materials in plantar pressure relief;Leber;Prosthet Orthot Int,1986
4. The use of the pedobarograph in assessment of the effectiveness of foot orthosis;Hughes;Biomechan Orthot Management Foot 1,1987
5. Statistical principles in experimental design;Winer,1971