@inproceedings{TorresBobadilla:20225n, author = "Torres Bobadilla, William J.", title = "{All loop causal representation of scattering amplitudes}", doi = "10.22323/1.398.0419", booktitle = "Proceedings of The European Physical Society Conference on High Energy Physics {\textemdash} PoS(EPS-HEP2021)", year = 2022, volume = "398", pages = "419" }