@misc{indiciae27f32821197d,
  title = {Tree and nontree multiparticle amplitudes.},
  author = {H Goldberg and MT Vaughn},
  year = {1991},
  doi = {10.1103/physrevlett.66.1267},
  url = {https://pubmed.ncbi.nlm.nih.gov/10043162/},
  note = {Source identifier: 10043162}
}