1. Izycki B, Godziemba-Maliszewski Jet al: ?Diffusion Welding? Publ WNT Warsaw, 1974.
2. Kubiszyn I: ?Cold butt pressure welding of copper to aluminium?. Research Report Bb-45, Publ The Welding Institute, Gliwice, 1974.
3. Dilthey U and Hickens S: ?Metallographic examination of electrode wear in resistance spot welding of aluminium?.Schweissen und Schneiden1998 (I).
4. Zadroga Let al: ?Study on and investigation into spot and projection welding of materials with different physical properties?. Research Report Da-95, Publ the Welding Institute Gliwice, 2001.
5. Pietras A: ?Study on and examination of selected pressure welding processes?. Research Report Bb-94, Publ the Welding Institute, Gliwice, 1996.