Hołowaty, Janusz, and Bernard Wichtowski. “Degradation Processes in Normalized Steels St37·12 and 18G2A of Two Operational Structures from the 20th Century”. Welding Technology Review 97 (January 1, 2025): 4–14. Accessed March 2, 2026. https://pspaw.pl/pspaw/article/view/1157.