„The Influence of the Thermomagnetic Treatments on the Hardness Number of Steels and the Superficial Layers Nitrided Durability“, Ann_UGAL_MMS, Bd. 28, Nr. 1, S. 70–74, Mai 2005, Zugegriffen: Nov. 02, 2026. Verfügbar unter: https://ojs.ugal.ro/index.php/mms/article/view/3276