MIRZAIE, R. On fundamental group of Riemannian manifolds with ommited fractal subsets. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 6, p. 854–858, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2769. Acesso em: 5 dec. 2025.