FLORENTINO, C.; LAWTON, S.; RAMRAS, D. Homotopy groups of free group character varieties . ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 17, n. 1, p. 143-185, 2017. DOI: 10.2422/2036-2145.201510_004. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/495. Acesso em: 20 feb. 2026.