@misc{indiciaefb30c18be6fc,
  title = {Reference System Description},
  author = {Lunden, C. D. and Lund, W. W. and Nalos, E. J.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810008037},
  note = {Source identifier: 19810008037}
}