Dykha, O., Vychavka, A. and Dykha, M. 2024. Wear resistance and lubricity of the spiral oil distribution profile of the valve guide sleeves of an internal combustion engine. Problems of Tribology. 29, 4/114 (Dec. 2024), 32–39. DOI:https://doi.org/10.31891/2079-1372-2024-114-4-32-39.