@misc{indiciaeedfae520bde9,
  title = {Chemical analysis of surfaces using alpha particles.},
  author = {Franzgrote, E. and Patterson, J. H. and Turkevich, A. L.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650039749},
  note = {Source identifier: 19650039749}
}