1. W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Templesmith, and C.J. Dawes, “Improvements Relating to Friction Welding,” European Patent EP 0 615 480 B1, 1992
2. M. Hansen, A Cooler Weld, Mechanical Engineering, Design Supplement, 2003,
www.memagazine.org/medes03/coolweld/coolweld.html
3. R.G. Pettit, J.J. Wang, and C. Toh, “Validated Feasibility Study of Integrally Stiffened Metallic Fuselage Panels for Reducing Manufacturing Costs,” NASA/CR-2000-209342, 2000
4. R. Talwar, D. Bolser, R. Lederich, and J. Baumann, Friction Stir Welding of Airframe Structures, Second International Symposium on Friction Stir Welding, TWI, UK, 2000
5. D. Lohwasser, Welding of Airframes by Friction Stir, Third International Symposium on Friction Stir Welding, TWI, UK, 2001