1. C.F.R § 213 (2020)
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3. AREMA, AREMA Manual for Railway Engineering (Chapt.4.3.11), Specification for Fabrication of Continuous Welded Rail (AREMA, 2022)
4. D. Stone, H. Iwand, J. Kristan, G. Lehnhoff, Flash butt rail weld vertical fractures. J Fail. Anal. And Preven. 15, 33–38 (2015)
5. AREMA, AREMA Manual for Railway Engineering (Chapt.4.2.1), Specifications for Steel Rails (AREMA, 2022)