MIRALLES LLUCH, V. Elements idempotents de l’àlgebra de grup. Reports@SCM, [S. l.], v. 10, n. 1, p. 87–88, 2025. Disponível em: https://revistes.iec.cat/index.php/reports/article/view/155903. Acesso em: 5 dec. 2025.