Dimitrova, Yana. “ANALYTICAL MODEL FOR DETERMINING THE FRICTION FORCE AT THE CONTACT OF A METAL BODY WITH A COPPER CONTACT SURFACE”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 4 (June 22, 2024): 56–60. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/8197.