Pudovkina Marina A., Zakharov Dmitry A. «On a set of impossible differences of feistel ciphers with a non-bijective transform of a round function» // Applied Discrete Mathematics. Supplement 2022. №15 C.49-50
Chukno Andrey B., Fomichev Vladimir M., Kurochkin Alexey V. «The difference relations and impossible differentials construction for the KB-256 algorithm» // Applied Discrete Mathematics. Supplement 2022. №15 C.73-77
