REISIG, W. The Expressive Power of Abstract-State Machines. COMPUTING AND INFORMATICS, [S. l.], v. 22, n. 3-4, p. 209–219, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/455. Acesso em: 1 apr. 2023.