„Production Process and Indicators of Production Systems“. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 42, no. 1 (März 15, 2019): 48–51. Zugegriffen November 2, 2026. https://ojs.ugal.ro/index.php/mms/article/view/2771.