KNUDSEN, L. R. Practically Secure Feistel Ciphers. DAIMI Report Series, [S. l.], v. 13, n. 472, 1994. DOI: 10.7146/dpb.v13i472.6945. Disponível em: https://tidsskrift.dk/daimipb/article/view/6945. Acesso em: 9 may. 2024.