1. ASME Boiler and Pressure Vessel Code. Section VIII Division 2, Appendix 4. New York: ASME; 2003.
2. BS 5500: British standard specification for fusion welded pressure vessels. London: British Standards Institute; 1996.
3. Assessment of the integrity of structures containing defects;Milne;Int J Pres Vessels Piping,1988
4. API Recommended Practice 579. Washington, DC: American Petroleum Institute; 2000.
5. Design for creep;Penny,1995