1. Energy Technology Series;D Allen,1998
2. ASTM 1986 ASTM Standard A335-P91 Standard Specification for Seamless Ferrite Steel Pipe for High Temperature Service, American Society for Testing of Materials
3. Canonico D 1994Proc. Second Int. Conf. Interaction of Steels with Hydrogen in Petroleum Industry Pressure Vessel and Pipeline Service (New York: Mater. Properties Council) vol. 2, pp 607–618
4. Czyrska-Filemonowicz A, Penkalla H J, Zielinska-Lipiec A, Ennis P J 2001Proc. 9th Int. Conf. on Creep Resistant Metallic Materials, Prague, (ed.) J Purmensky, pp 204–212
5. Eggeler G, Nilsvang N, Ilschner B 1987Steel Res. 2: 97–103