@inproceedings{Bischof:2022Bp,
  author = "Bischof, Andreas  and  Haack, Michael",
  title = "{Disk amplitudes of closed strings in the pure spinor formalism}",
  doi = "10.22323/1.406.0223",
  booktitle = "Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2021)",
  year = 2022,
  volume = "406",
  pages = "223"
}