@misc{indiciaef437a6e3bcd5,
  title = {Ortho-to-para conversion in solid tritium. I. Theoretical models.},
  author = {Y Cao and JR Gaines and PA Fedders and PC Souers},
  year = {1988},
  doi = {10.1103/physrevb.37.1474},
  url = {https://pubmed.ncbi.nlm.nih.gov/9944664/},
  note = {Source identifier: 9944664}
}