@misc{indiciae115f2ba95b12,
  title = {Positronium lifetime calculation.},
  author = {AA Pivovarov},
  year = {1993},
  doi = {10.1103/physrevd.47.5183},
  url = {https://pubmed.ncbi.nlm.nih.gov/10015532/},
  note = {Source identifier: 10015532}
}