1. Akiyama, K., Goto, Y.: An algebraic surface public-key cryptosystem. IEICE Tech. Rep. 104(421), 13–20 (2004)
2. Akiyama, K., Goto, Y.: A public-key cryptosystem using algebraic surfaces. In: Proceedings of PQCrypto, pp. 119–138 (2006). http://postquantum.cr.yp.to/
3. Akiyama, K., Goto, Y.: An improvement of the algebraic surface public-key cryptosystem. In: Proceedings of 2008 Symposium on Cryptography and Information Security, SCIS 2008, CD-ROM, 1F1-2 (2008)
4. Lecture Notes in Computer Science;K Akiyama,2009
5. Babai, L.: On Lovász’ lattice reduction and the nearest lattice point problem. Combinatorica 6(1), 1–13 (1986). (Preliminary version in STACS 1985)