@article{TorresBobadilla:20225n,
  author = "Torres Bobadilla, William J.",
  title = "{All loop causal representation of scattering amplitudes}",
  doi = "10.22323/1.398.0419",
  journal = "PoS",
  year = 2022,
  volume = "EPS-HEP2021",
  pages = "419"
}