KÁTAI, Imre; B, Khanh; B, Phong. ON THE EQUATION F(n² + m² + k) = H(n) + H(m) + K. Thang Long Journal of Science: Mathematics and Mathematical Sciences, [S. l.], v. 1, n. 4, p. 135–151, 2023. Disponível em: https://science.thanglong.edu.vn/index.php/volc/article/view/54. Acesso em: 21 nov. 2024.