BIRYUKOV, A.; KHOVRATOVICH, D.; PERRIN, L. Multiset-Algebraic Cryptanalysis of Reduced Kuznyechik, Khazad, and secret SPNs. IACR Transactions on Symmetric Cryptology, [S. l.], v. 2016, n. 2, p. 226–247, 2017. DOI: 10.13154/tosc.v2016.i2.226-247. Disponível em: https://tosc.iacr.org/index.php/ToSC/article/view/572. Acesso em: 8 dec. 2021.