1. Plastic limit load of plane frames with frictional contact supports;Bousshine;International Journal of Mechanical Sciences,2002
2. API 579. Recommended practice for fitness-for-Service. American Petroleum Institute ISSUE 6, 2000.
3. R6. Assessment of the integrity of structures containing defects. Procedure R6-Revision 4, Gloucester, UK: Nuclear Electric Ltd.; 2000.
4. SINTAP. Structure integrity assessment procedures for European industry. European Commission, printed in Italy, 1999.
5. Schroeder J. Analysis of test data on branch-pipe connections exposed to internal pressure and/or external couples. WRC Bulletin 200, 1974.