Adamiec, Janusz, Grzegorz Kokot, and Michał Więcek. “Technologia Spawania Laserowego Rur ożebrowanych; Finned Pipes Laser Welding Technology”. Welding Technology Review 86, no. 5 (May 10, 2014). Accessed July 9, 2026. https://pspaw.pl/pspaw/article/view/73.