@inproceedings{Vanhove:2022SN,
  author = "Vanhove, Pierre  and  Zerbini, Federico",
  title = "{Building blocks of closed and open string amplitudes}",
  doi = "10.22323/1.383.0022",
  booktitle = "Proceedings of MathemAmplitudes 2019: Intersection Theory & Feynman Integrals {\textemdash} PoS(MA2019)",
  year = 2022,
  volume = "383",
  pages = "022"
}