1. Borcherds R, Vertex operator algebras, Kac-Moody algebras and the monster,Proc. Natl. Acad. Sci. USA83 (1986) 3068–3071
2. Cohen H, Sums involving the values at negative integers of L functions of quadratic characters,Math. Ann. 217 (1977) 81–94
3. Eichler M and Zagier D, The Theory of Jacobi Forms,Prog. Math. 55, (Boston-Basel-Stuttgart, Birkhäuser) (1985)
4. Getzler E, Manin triples and N = 2 superconformal field theory (preprint), MIT (1993)
5. Ibukiyama T and Zagier D, Higher spherical polynomials (in preparation)