Breki A.D. Tribological characteristics of materials of friction pairs and lubricating media under conditions of spontaneous changes in the states of friction contact: dissertation ... Doctor of Technical Sciences: 05.02.04 / Breki Alexander Dzhalulevich; [Place of defense: FGAOU VO "St. Petersburg Polytechnic University of Peter the Great"]. - St. Petersburg, 2021. - 378 p.