ET. AL., Svetlana A. Ulyanova. Assessing the Factor Influence on Patent Activity in Mining and Metallurgical Industry (e.g. Nano Products). Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 3, p. 5768–5775, 2021. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/2253. Acesso em: 13 oct. 2025.