TIKJHA, W. Prime Period-6 Solutions On xn+1 = |xn| - yn + 1 and yn+1 = xn + |yn| - 1. Life Sciences and Environment Journal, [S. l.], v. 12, n. 1, p. 86–102, 2014. Disponível em: https://ph01.tci-thaijo.org/index.php/psru/article/view/17044. Acesso em: 17 may. 2024.