« Laser Surface Hardening of 51CrV4 Steel ». The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 28, no. 2 (novembre 15, 2005): 5–10. Consulté le novembre 2, 2026. https://ojs.ugal.ro/index.php/mms/article/view/3242.