GUŠEV, M.; EVANS, D. J. A Regular Folding Procedure. COMPUTING AND INFORMATICS, [S. l.], v. 16, n. 3, p. 229–242, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/657. Acesso em: 3 may. 2024.