@misc{indiciae30ae92d81fd2,
  title = {Singlet-positronium decay using a relativistic wave function.},
  author = {HW Crater},
  year = {1991},
  doi = {10.1103/physreva.44.7065},
  url = {https://pubmed.ncbi.nlm.nih.gov/9905847/},
  note = {Source identifier: 9905847}
}