T. KANNAN; C. GANESA MOORTHY. Collatz Conjecture for Modulo an Integer. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 3 - A, p. 41–61, 2016. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/971. Acesso em: 22 jul. 2024.