1. E. Biham, A. Shamir. Differential Cryptanalysis of DES-like Cryptosystems. Journal of Cryptology, Vol. 4 No. 1 1991.
2. E. Biham, A. Shamir. Differential Cryptanalysis of the full 16-round DES. Technical Report # 708, Technion-Israel Institute of Technology.
3. Lect Notes Comput Sci;X. Lai,1991
4. R. Lidl, H. Niederreiter. Finite Fields. Encyclopedia of Mathematics and its applications, Vol. 20. Addison-Wesley, Reading, Massachusetts, 1983.
5. Lect Notes Comput Sci;T. Matsumoto,1989