1. C. Weismann: Resistance and Solid State Welding and Other Ioining Processes, 7th ed., vol. 3. American Welding Society, Miami, 1976.
2. M. Preuss and P. Threadgill: in Solid State Welding of Aeroengine Materials. Encyclopedia of Aerospace Engineering 2010, Wiley, Chister, 2010.
3. W.S. Robotham, T.H. Hyde, E.J. Williams, P. Brown, I.R. McColl, and C.J. Kong: 4th Int. Conf. Adv. Exp. Mech., September 6, 2005–September 8, 2005, Southampton, UK: Trans Tech Publications, 2005.
4. Wang, K.K. and P. Nagappan: Weld. J., 1970, vol. 49, pp. 419–26.
5. Wang, K.K. and W. Lin: Weld. J., 1974, vol. 53, pp. 233–42.