HÜTTEL, H.; SRBA, J. Recursion vs. Replication in Simple Cryptographic Protocols. BRICS Report Series, [S. l.], v. 11, n. 23, 2004. DOI: 10.7146/brics.v11i23.21848. Disponível em: https://tidsskrift.dk/brics/article/view/21848. Acesso em: 27 nov. 2022.