@misc{indiciae6812d104b7dc,
  title = {NASA's TReK Project: A Case Study in Using the Spiral Model of Software Development},
  author = {Hendrix, T. Dean and Schneider, Michelle P.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/19990064487},
  note = {Source identifier: 19990064487}
}