1. V. A. Korotkov, “Manual plasma hardening,” Byulleten’: Chern. Met., No. 10, 62–68 (2016).
2. V. A. Korotkov and M. V. Zlokazov, “Study of carbon steel wear resistance strengthened by plasma hardening,” Trenie Iznos, 35, No. 2, 178–182 (2014).
3. V. A. Korotkov and M. V. Zlokazov, “Study of forged steel wear resistance given plasma hardening treatment,” Vestn. Mashinostroeniya, No. 8, 59–61 (2014).
4. V. A. Korotkov, “Equipment for surface hardening,” Khim. Neft. Mashinotroenie, No. 11, 43–45 (2012).
5. A. S. Zubchenko (editor), Steel and Alloy Handbook [in Russian], Машиностроение, Moscow (2003).