1. The status of the classification of the finite simple groups;Aschbacher;Notices Amer. Math. Soc.,2004
2. K3 surfaces and string duality;Aspinwall,1997
3. Compact Complex Surfaces;Barth,2004
4. Gauss and Jacobi Sums;Berndt,1998
5. Géométrie des surfaces K3: modules et périodes;Beuville,1985