1. ISO 8013 1988. Determination of Creep in Compression or Shear.
2. BS 903: Part A15, 1990. Determination of Creep in Compression or Shear.
3. Hall, M.M. and Wright, D.C. (Sept./Oct. 1976). RAPRA Members J., No. 5.
4. ISO 3384, 1991. Determination of Stress Relaxation in Compression at Normal and High Temperatures.
5. BS 903: Part A42, 1992. Determination of Stress Relaxation.