@misc{indiciae5aba99db1d47,
  title = {Minimum detectable limit of lithium in the upper atmosphere.},
  author = {Gardner, J. A. and Manring, E. R. and Patty, R. R.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680060179},
  note = {Source identifier: 19680060179}
}