@misc{indiciae7cf0fce6cfd2,
  title = {Suprathermal ion detector experiment /lunar ionosphere detector/},
  author = {Freeman, J. W., Jr. and Hills, H. K.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710021486},
  note = {Source identifier: 19710021486}
}