Гладкий, Я.М., and О.М. Маковкін. “Capacity of Materials With Wearproof Coverages”. Problems of Tribology 61, no. 3 (July 18, 2014): 44–51. Accessed April 7, 2025. https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/309.