1. European Standard EN1591-1. Flanges and their joints—design rules for gaskets circular flange connections—part 1: calculation method. CEN European Committee for Standardization, April 2001.
2. Appendix 24-ASME VIII, Div.1. American Society of Mechanical Engineers.
3. ASME VIII, Div. Z. American Society of Mechanical Engineers.
4. Theory of plates and shells;Timoshenko,1959