On the distribution of primitive roots that are $(k,r)$-integers. Armenian Journal of Mathematics, [S. l.], v. 11, n. 12, p. 1–12, 2022. DOI: 10.52737/18291163-2019.11.12-1-12. Disponível em: http://test.armjmath.sci.am/index.php/ajm/article/view/298. Acesso em: 18 sep. 2024.