1. Lecture Notes in Computer Science;D. Atkins,1994
2. Technical Report UCB/CSD 84/186;E. Bach,1984
3. D. Coppersmith, A. M. Odlyzko and R. Schroeppel, Discrete Logarithms in GF(p), Algorithmica, Vol. 1 (1986) pp. 1?15.
4. W. Diffie and M. E. Hellman, New directions in cryptography, IEEE Transactions on Information Theory, Vol. IT-22 (1976) pp. 664?654.
5. Lecture Notes in Computer Science;B. Dixon,1993