Karuskevych, M., Maslak, T., Karuskevych, O. and Korchuk, V. 2026. Surface deformation relief as an indicator of fatigue damage under two-step loading sequences. Problems of Tribology. 31, 1/119 (Mar. 2026), 92–98. DOI:https://doi.org/10.31891/2079-1372-2026-119-1-92-98.