Bury, Peter, S. Barta, V. Magula, V. Slugen, and T. Smida. “Ultrasonic Investigation of Plastically Deformed Steel-Contribution to Analysis of Degradation Influence”. Communications - Scientific letters of the University of Zilina 5, no. 2 (June 30, 2003): 41-43. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/1351.