@misc{indiciae34c0cccc9ef7,
  title = {The natural background at Shuttle altitudes},
  author = {Torr, Marsha R. and Owens, J. K. and Eun, J. W. and Torr, D. G. and Richards, P. G.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880032692},
  note = {Source identifier: 19880032692}
}