“Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature of 450 °C”. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, vol. 30, no. 1, May 2007, pp. 31-36, https://ojs.ugal.ro/index.php/mms/article/view/3173.