1. N. I. Lazarenko, Electrospark Alloying of Metallic Surfaces [in Russian], Mashinostroenie, Moscow (1976), p. 44.
2. G. V. Samsonov, A. D. Verkhoturov, G. A. Bovkun, and V. S. Sychev, Electrospark Alloying of Metallic Surfaces [in Russian], Naukova Dumka, Kiev (1976), p. 220.
3. V. S. Kovalenko, A. D. Verkhoturov, L. F. Golovko, and I. A. Podchernyaeva, Laser and Electrospark Erosion Hardening [in Russian], Nauka, Moscow (1986), p. 276.
4. A. D. Verkhoturov, I. A. Podchernyaeva, N. S. Stolyarova, et al., Electrospark-Deposited Coatings from New Heterophase Materials [in Russian], Inst. Gorn. Dela DVO AN SSSR, Vladivostok (1987), p. 60.
5. V. P. Konoval, O. P. Umanskii, A. D. Panasyuk, et al., “Electrospark deposition of coatings from titanium–chromium carbide and diboride composites,” Sverkhtverd. Mater., No. 4, 84–91 (2009).