BOROWSKI, Mariusz; ŁABUZEK, Grzegorz. IP-KRYPTO cipher machine for military use. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 18, n. 4, p. 64–68, 2004. DOI: 10.26636/jtit.2004.4.263. Disponível em: https://www.jtit.pl/jtit/article/view/263. Acesso em: 10 jul. 2026.