@misc{indiciaeede999ee999e,
  title = {Analyzing multiparticle reactions. I. Unitarizing perturbative amplitudes.},
  author = {WH Klink},
  year = {1990},
  doi = {10.1103/physrevc.41.435},
  url = {https://pubmed.ncbi.nlm.nih.gov/9966378/},
  note = {Source identifier: 9966378}
}