@misc{indiciaef6f309dd6a8e,
  title = {Secondary Electrons from Cobalt.},
  author = {M N Davis},
  year = {1928},
  doi = {10.1073/pnas.14.6.460},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577129/},
  note = {Source identifier: 16577129}
}