Kravcov, A.G. “Evaluation of Tribological Characteristics of Liquid Lubricants With Fullerene Additives”. Problems of Tribology 25, no. 3/97 (September 28, 2020): 50–54. Accessed July 30, 2025. https://tribology.khmnu.edu.ua/index.php/ProbTrib/article/view/766.