1. The Advanced Encryption Standard,
http://www.nist.gov/aes/
2. Lect Notes Comput Sci;B. Schneier,1994
3. Lect Notes Comput Sci;J. Stern,1998
4. Lect Notes Comput Sci;E. Biham,1997
5. The Alpha OEM web site,
http://www.digital.com/semiconductor/alpha/alpha.htm