1. V. G. Kaplun and P. V. Kaplun, Ion Nitriding in Hydrogen-Free Media [in Russian], KhNU, Khmelnitskyi (2015).
2. A. Yu. Beregovenko, V. G. Kaplun, A. P. Yakovlev, and I. N. Pastukh, “Influence of nitriding on damping properties of some metallic materials,” Strength Mater., 25, No. 8, 604–609 (1993).
3. L. I. Samoilov, I. A. Ignatov, A. M. Vorob’ev, and V. S. Kozlova, “Determination of thermal stresses in diffusionless heat-resistant system coatings (Co) CA,” Zavod. Lab., No. 21, 18–22 (1984).
4. V. A. Barvinok, V. I. Bogdanovich, F. I. Kataev, et al., “Determination of residual stresses in ion-plasma coatings,” Svar. Proizv., No. 5, 11–15 (1981).
5. N. N. Davidenkov, “Measurement of residual stresses,” Zavod. Lab., No. 8, 987–990 (1937).