1. Aubry Y, Perret M. Divisibility of zeta functions of curves in a covering. Arch Math, 2004, 82: 205–213
2. Deligne P. La conjecture de Weil II. Publ Math IHES, 1980, 52: 137–252
3. Hirchsfeld J W P. Projective Geometries over Finite Fields, 2nd ed. Oxford: Clarendon Press, 1998
4. Ihara Y. Some remarks on the number of rational points of algebraic curves over finite fields. J Fac Sci Univ Tokyo Sect IA Math, 1981, 28: 721–724
5. Ireland K, Rosen M. A Classical Introduction to Modern Number Theory, 2nd ed. In: Graduate Texts in Mathematics, vol. 84. New York: Springer-Verlag, 1990