NGUYEN BA, An. Secure direct message exchange based on simultaneous usage of two different degrees of freedom. Thang Long Journal of Science: Mathematics and Mathematical Sciences, [S. l.], v. 3, n. 1, 2024. Disponível em: https://science.thanglong.edu.vn/index.php/volc/article/view/125. Acesso em: 11 dec. 2024.