Дыха O. В., В. П. Вельбой, and В. О. Дитинюк. “Analysis of Tribological Properties and Promising Research of Non-Metallic Sliding Bearings”. Problems of Tribology, vol. 90, no. 4, Jan. 2019, pp. 32-35, https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/687.