ALCARAZ-MARTÍNEZ, Rubén. Black hat SEO and other unethical techniques: evolution and current situation. Infonomy, [S. l.], v. 1, n. 1, 2023. DOI: 10.3145/infonomy.23.008. Disponível em: https://infonomy.scimagoepi.com/index.php/infonomy/article/view/8. Acesso em: 7 may. 2026.