Bounding Topology via Geometry, $A$-Simple Fundamental Groups. Communications in Mathematical Research, [S. l.], v. 36, n. 4, p. 489–505, 2020. DOI: 10.4208/cmr.2020-0030. Disponível em: https://global-sci.com/index.php/cmr/article/view/9043. Acesso em: 5 dec. 2025.