BONE99 Boneh, D. "Twenty Years of Attacks on the RSA Cryptosystem." Notices of the American Mathematical Society, February 1999.
CORM01 Cormen, T.; Leiserson, C.; Rivest, R.; and Stein, C. Introduction to Algorithms. Cambridge, MA: MIT Press, 2001.
DIFF88 Diffie, W. "The First Ten Years of Public-Key Cryptography." Proceedings of the IEEE, May 1988. Reprinted in [SIMM92].
SHAM03 Shamir, A., and Tromer, E. "On the Cost of Factoring RSA-1024." CryptoBytes, Summer 2003. http://www.rsasecurity.com/rsalabs