MOLTENI, Davide; FERRETTI, Claudio; MAURI, Giancarlo. Frequency Membrane Systems. Computing and Informatics, [S. l.], v. 27, n. 3+, p. 467–479, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/244. Acesso em: 1 may. 2025.