1. Roberto Maria Avanzi, Another look at square roots (and other less common operations) in fields of even characteristic, Selected Areas in Cryptography, Lecture Notes in Computer Science, vol. 4876/2007, Springer Berlin / Heidelberg, 2007, pp. 138–154.[eprint]
  2. Roberto M. Avanzi, Mathias Kratzer, and Gerhard O. Michler, Janko's simple groups J2 and J3 are irreducible subgroups of SL85(5) with equal centralizers of an involution, Groups and Computation, III (Columbus, OH, 1999), Ohio State Univ. Math. Res. Inst. Publ., vol. 8, de Gruyter, Berlin, 2001, pp. 21–37.[MR]