@misc{indiciae965f31c40ea7,
  title = {SPAN: Astronomy and astrophysics},
  author = {Thomas, Valerie L. and Green, James L. and Warren, Wayne H., Jr. and Lopez-Swafford, Brian},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19920018942},
  note = {Source identifier: 19920018942}
}