@misc{indiciaea5145a27efc7,
  title = {X-ray spectrographic determination of cesium and rubidium},
  author = {J. M. Axelrod and I. Adler},
  year = {2002},
  doi = {10.1021/ac60129a009},
  url = {https://pubs.usgs.gov/publication/70010720},
  note = {Source identifier: 70010720}
}