Hadipour, H., M. Nageler, and M. Eichlseder. “Throwing Boomerangs into Feistel Structures: Application to CLEFIA, WARP, LBlock, LBlock-S and TWINE”. IACR Transactions on Symmetric Cryptology, vol. 2022, no. 3, Sept. 2022, pp. 271-02, doi:10.46586/tosc.v2022.i3.271-302.