Usherenko, Yulia, Sergei Usherenko, Vladimir Dashkevich, and Javad Yazdani. “USING DYNAMIC PRE-ACTIVATION OF STEEL SURFACES FOR NITRIDING INTENSIFICATION”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 321–324. Accessed May 4, 2024. https://journals.rta.lv/index.php/ETR/article/view/2616.