Solving Two Problems IN Number Theory. European Journal of Mathematics and Statistics, [S. l.], v. 2, n. 3, p. 8–9, 2021. DOI: 10.24018/ejmath.2021.2.3.24. Disponível em: https://ej-math.org/index.php/ejmath/article/view/24. Acesso em: 20 oct. 2025.