@misc{indiciaea8445f295873,
  title = {Pion double-charge-exchange operator.},
  author = {WR Gibbs and M Elghossain and WB Kaufmann},
  year = {1993},
  doi = {10.1103/physrevc.48.1546},
  url = {https://pubmed.ncbi.nlm.nih.gov/9968995/},
  note = {Source identifier: 9968995}
}