RIEU-HELFT, R. A Why3 proof of GMP algorithms. Journal of Formalized Reasoning, [S. l.], v. 12, n. 1, p. 53–97, 2019. DOI: 10.6092/issn.1972-5787/9730. Disponível em: https://jfr.unibo.it/article/view/9730. Acesso em: 19 apr. 2024.