@misc{indiciae653506af7d72,
  title = {Self-checking software},
  author = {Cha, Sung D. and Leveson, Nancy G. and Shimeall, Timothy J. and Knight, John C.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19890068411},
  note = {Source identifier: 19890068411}
}