@misc{indiciaee0d3530c1cc2,
  title = {GCS programmer's manual},
  author = {Lowman, Douglas S. and Withers, B. Edward and Shagnea, Anita M. and Dent, Leslie A. and Hayhurst, Kelly J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910008299},
  note = {Source identifier: 19910008299}
}