@misc{indiciaedda00c7c9a63,
  title = {Ground Collision Avoidance System (Igcas)},
  author = {Skoog, Mark A and Prosser, Kevin and Hook, Loyd},
  year = {2017},
  url = {https://ntrs.nasa.gov/citations/20170004339},
  note = {Source identifier: 20170004339}
}