KOLESNYK, P. O. Genera of the Torsion-Free Polyhedra. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 10, p. 1332–1341, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2512. Acesso em: 5 dec. 2025.