Wang, Haoyang, and Thomas Peyrin. “Boomerang Switch in Multiple Rounds. Application to AES Variants and Deoxys”.
IACR Transactions on Symmetric Cryptology
, vol. 2019, no. 1, Mar. 2019, pp. 142-69,
https://doi.org/10.13154/tosc.v2019.i1.142-169
.