@misc{indiciae767afb504a3f,
  title = {System Acquires And Displays Signal-Propagation Data},
  author = {Mckeeman, John C. and Remaklus, P. William},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910000434},
  note = {Source identifier: 19910000434}
}