@misc{indiciaea1f87a4247ef,
  title = {Chemical Analysis of Surfaces Using Alpha Particles},
  author = {Franzgrote, E. and Patterson, J. H. and Turkevich, A. L.},
  year = {1964},
  url = {https://ntrs.nasa.gov/citations/19660023878},
  note = {Source identifier: 19660023878}
}