@article{Hohenegger:2012Ey,
  author = "Hohenegger, Stefan",
  title = "{BPS saturated string amplitudes K3 elliptic genus and Igusa cusp form chi_{10}}",
  doi = "10.22323/1.155.0069",
  journal = "PoS",
  year = 2012,
  volume = "CORFU2011",
  pages = "069"
}