Pokorný, Z., J. Kadlec, V. Hrubý, Z. Joska, D. Q. Tran, and D. Beran. 2022. “Plasma Nitriding of Bored Barrels”. Advances in Military Technology 6 (1): 69-76. https://aimt.cz/index.php/aimt/article/view/1616.