SINGH, R. N. The Diophantine Equation y² = Dx⁴+1. The Journal of the Indian Mathematical Society, [S. l.], v. 53, n. 1-4, p. 245–250, 1988. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/22017. Acesso em: 29 apr. 2024.