@misc{indiciaef98c6324fee2,
  title = {Tracking-station coordinates from Geos 1 and Geos 2 optical flash data.},
  author = {Marsh, J. G. and Douglas, B. C. and Klosko, S. M.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730029983},
  note = {Source identifier: 19730029983}
}