BATÍKOVÁ, Barbora; KEPKA, Tomáš; NˇEMEC, Petr. CRITICAL SEMIMODULES. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 37, p. 172–183, 2017. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6817. Acesso em: 16 sep. 2026.