@article{Vanhove:2022SN,
  author = "Vanhove, Pierre  and  Zerbini, Federico",
  title = "{Building blocks of closed and open string amplitudes}",
  doi = "10.22323/1.383.0022",
  journal = "PoS",
  year = 2022,
  volume = "MA2019",
  pages = "022"
}