1. 1. Stepanova T. Yu. Technologies of Machine Component Surface Strengthening. Ivanovo: Ivanovo State University of Chemistry and Technology, 2009. 64 pp. (in Russian).
2. 2. Sulima V. A., Shulov V. A., Yagodkin Yu. D. Machine Component Surface Layer and Service Properties. Мoscow: Mashinostroyeniye, 1988. 240 pp. (in Russian).
3. 3. Panin V. E., Sergeev V. P., Panin A. V. Nanostructuring of Strucrural Material Surface Layers and Nanostructured Coating Deposition. Tomsk: Tomsk Polytechnic University, 2010. 254 pp. (in Russian).
4. 4. Svadkovsky I. V. Lines of the development of magnetron sputtering systems (in Russian). Doklady BGUIR. 2007. No. 2(18). Pp. 112-121.
5. 5. Granovsky V. L. Electric Current in a Gas. Steady-State Current. Moscow: Nauka, 1971. 543 pp.