1Conway J H, Sloane N J A. Sphere Packings, Lattices, and Groups. 3rd ed. New York: Springer-Verlag,1998.
2Niederreter H, Xing C P. Rational Points on Curves over Finite Field: Theory and Applications. London Math Soc Lecture Notes Series, Vol 285. Cambridge: Cambridge University Press, 2001.
3Weiss E. Algebraic Number Theory. New York: McGraw-Hill, 1963.
4Stichtenoth H. Algebraic Function Fields and Codes. Berlin: Springer-Verlag, 1993. 167- 169.
