@misc{indiciae34896112e67d,
  title = {Rutherford backscattering from a thick target.},
  author = {Z Smit},
  year = {1993},
  doi = {10.1103/physreva.48.2070},
  url = {https://pubmed.ncbi.nlm.nih.gov/9909827/},
  note = {Source identifier: 9909827}
}