КУЗЬМЕНКО, А. Research of the indention method of surfaces a sphere with definition of new mechanical characteristics of metal. Problems of Tribology, [S. l.], v. 59, n. 1, p. 100–113, 2014. Disponível em: https://tribology.khmnu.edu.ua/index.php/ProbTrib/article/view/362. Acesso em: 31 jul. 2025.