1. Wheeler, D., Needham, R.: TEA, a tiny encryption algorithm. Technical report, Cambridge University, England (November 1994)
2. Lecture Notes in Computer Science;D. Wheeler,1995
3. Lecture Notes in Computer Science;J. Kelsey,1997
4. Wheeler, D., Needham, R.: TEA extensions. Technical report, Cambridge University, England (October 1997)
5. Wheeler, D., Needham, R.: Correction to xtea. Technical report, Cambridge University (1998)