1. http://www.ecrytp.eu.org/stream
2. NIST Special Publication 800-38A. Recommendation for block cipher modes of operation-methods and techniques (2001),
http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf/
3. Lecture Notes in Computer Science;D. Augot,2005
4. Lecture Notes in Computer Science;J.-P. Aumasson,2010
5. Barg, A.: Complexity issues in coding theory, vol. 1, pp. 649–754. Elsevier Science, Amsterdam (1998)