@misc{indiciae6ca8eaa733b1,
  title = {Evolution of the Space Shuttle Primary Avionics Software and Avionics for Shuttle Derived Launch Vehicles},
  author = {Ferguson, Roscoe C.},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20110007936},
  note = {Source identifier: 20110007936}
}