Tongov, Manahil, Vladimir Petkov, and Plamen Tashev. “Influence of Heat Input on Formation of Layers in WAAM”. Proceedings of the Bulgarian Academy of Sciences 77, no. 11 (November 30, 2024): 1639–1645. Accessed March 19, 2025. https://proceedings.bas.bg/index.php/cr/article/view/645.