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3. Yakushin BF (2003) The Scientific Base for Russian Federation and European Weldability Tests Standards Harmonisation. IIW doc IX-H-573-03
4. Wilken K (1999) Investigation to Compare Hot Cracking Tests — Externally Loaded Specimens. IIW doc IX-1945-99
5. Yakushin BF (2003) Analysis of GOST Standard 26389–84. IIW doc IX-H-582-03 (translated by Peter Bernasovsky)