@misc{indiciae33bc084bcdb3,
  title = {Signature Data Processing Study: Summary Final Report - Volume 1},
  author = {Crawford, C. L. and Dye, R. H. and Hanson, D. S.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710003033},
  note = {Source identifier: 19710003033}
}