Skoblo, T., A. Sidashenko, T. Maltsev, and V. Romanchenko. “The Use of the Optical-Mathematical Method to Describe the Structure Formation During Friction”. Problems of Tribology, vol. 24, no. 3/93, Oct. 2019, pp. 6-13, doi:10.31891/2079-1372-2019-93-3-6-13.