@misc{indiciaeb38dd765ac2d,
  title = {L-Band Digital Aeronautical Communications System Engineering - Initial Safety and Security Risk Assessment and Mitigation},
  author = {Zelkin, Natalie and Henriksen, Stephen},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20110005653},
  note = {Source identifier: 20110005653}
}