@misc{indiciae58853e1e9570,
  title = {Astronomy in Space},
  author = {Newell, Homer E. and Smith, Henry J. and Roman, Nancy G. and Mueller, George E.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670009401},
  note = {Source identifier: 19670009401}
}