Wei, Yongzhuang, Tao Ye, Wenling Wu, and Enes Pasalic. “Generalized Nonlinear Invariant Attack and a New Design Criterion for Round Constants”.
IACR Transactions on Symmetric Cryptology 2018, no. 4 (December 13, 2018): 62–79. Accessed April 4, 2025.
https://tosc.iacr.org/index.php/ToSC/article/view/7361.