CARDONA, M.; COLOMER, M. A.; ZARAGOZA, A.; JIMÉNEZ, M. J. P. Hierarchical Clustering with Membrane Computing. COMPUTING AND INFORMATICS, [S. l.], v. 27, n. 3+, p. 497–513, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/246. Acesso em: 29 mar. 2023.