@misc{indiciaeef49580a5abf,
  title = {Surface-barrier reflection of diffusing positrons.},
  author = {GR Brandes},
  year = {1991},
  doi = {10.1103/physrevb.43.10111},
  url = {https://pubmed.ncbi.nlm.nih.gov/9996727/},
  note = {Source identifier: 9996727}
}