@misc{indiciaef2aaaa74d9f6,
  title = {Positronium negative ion: An adiabatic study using hyperspherical coordinates.},
  author = {J Botero and CH Greene},
  year = {1985},
  doi = {10.1103/physreva.32.1249},
  url = {https://pubmed.ncbi.nlm.nih.gov/9896195/},
  note = {Source identifier: 9896195}
}