@misc{indiciaee8f9ca9e4a9f,
  title = {ISAGEX (International Satellite Geodesy Experiment) experience. 1: Data acquisition},
  author = {Gaposchkin, E. M.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730002098},
  note = {Source identifier: 19730002098}
}