REGALADO, D. Y.; AZURA, R. An Analytic Approximation to the Density of Twin Primes. Recoletos Multidisciplinary Research Journal, [S. l.], v. 6, n. 2, 2018. DOI: 10.32871/rmrj1806.02.05. Disponível em: https://rmrj.usjr.edu.ph/rmrj/index.php/RMRJ/article/view/532. Acesso em: 29 mar. 2024.