ÇETIN, Selim; GÜRDAL, Utku. Crossed modules with action. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 76, n. 4, p. 581–598, 2024. DOI: 10.3842/umzh.v74i4.7371. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7371. Acesso em: 5 dec. 2025.