@misc{indiciaeec9988769311,
  title = {Communications and tracking - The keys to Space Station utilization},
  author = {Sawyer, R. S. and Schmidt, O. L. and Graham, O. L.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860055791},
  note = {Source identifier: 19860055791}
}