@misc{indiciae22a681e85902,
  title = {K -shell ionization by relativistic electron impact.},
  author = {Y Watanabe and T Kubozoe and T Tomimasu and T Mikado and T Yamazaki},
  year = {1987},
  doi = {10.1103/physreva.35.1423},
  url = {https://pubmed.ncbi.nlm.nih.gov/9898286/},
  note = {Source identifier: 9898286}
}