Complementation-Like and Cyclic Properties of AES Round Functions. - Tri Van Le; Rüdiger Sparr; Ralph Wernsdorf; Yvo Desmedt (AES Conference, 2004)

Group theoretic properties of Rijndael-like ciphers. - Rüdiger Sparr; Ralph Wernsdorf (Discret. Appl. Math., 2008)

The round functions of KASUMI generate the alternating group. - Rüdiger Sparr; Ralph Wernsdorf (J. Math. Cryptol., 2015)