1Graber, T., Pandharipande, R.: Localization of virtual classes. Invent. Math., 135(2), 487-518 (1999).
2Witten, E.: Two-dimensional gravity and intersection theory on moduli space. Surveys in Differential Geometry (Cambridge, MA, 1990), 243-310, Lehigh Univ., Bethlehem, PA (1991).
3Kontsevich, M.: Intersection theory on the moduli space of curves and the matrix Airy function. Comm.Math. Phys., 147(1), 1-23 (1992).
4Okounkov, A., Panharipande, R.: Gromov-Witten theory, Hurwitz numbers, and Matrix models, I. Preprint,Math. AG/0101147.
5Faber, C.: Algorithms for computing intersection numbers on moduli spaces of curves, with an application to the class of the locus of Jacobians. New Trends in Algebraic Geometry (Warwick, 1996), 93-109, London Math. Soc. Lecture Note Ser., 264, Cambridge Univ. Press, Cambridge (1999).
6Faber, C., Pandharipande, R.: Hodge integrals and Gromov-Witten theory. Invent. Math., 139(1), 173-199(2000).
7Faber, C., Pandharipande, R.: Hodge integrals, partition matrices, and the λg conjecture. Preprint, Math.AG/9908052.
8Ruan, Y., Tian, G.: A mathematical theory of quantum cohomology. J. Differential Geom., 42(2), 259-367(1995).
9Ruan, Y., Tian, G.: Higher genus symplectic invariants and sigma models coupled with gravity. Invent.Math., 130(3), 455-516 (1997).
10Li, J., Tian, G.: Virtual moduli cycles and Gromov-Witten invariants of algebraic varieties. J. Amer. Math.Soc.,11(1), 119-174 (1998).
