CHMIEL, Krzysztof. Distribution of the best nonzero differential and linear approximations of s-box functions. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 25, n. 3, p. 8–13, 2006. DOI: 10.26636/jtit.2006.3.385. Disponível em: https://www.jtit.pl/jtit/article/view/385. Acesso em: 15 jun. 2026.