@misc{indiciae559c363c3c26,
  title = {Geoastronomical observations},
  author = {Dunkelman, L. and Gill, J. R. and Mercer, R. D. and Roach, F. E.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660020366},
  note = {Source identifier: 19660020366}
}