@misc{indiciaef3039046f4a7,
  title = {LEED optics as electron mirror microscope.},
  author = {C C Chang},
  year = {1971},
  doi = {10.1063/1.1685041},
  url = {https://pubmed.ncbi.nlm.nih.gov/5542294/},
  note = {Source identifier: 5542294}
}