@misc{indiciae9ffc7c241f6f,
  title = {Structured prototyping as risk management},
  author = {Hornstein, Rhoda SH. and Gardner, J. A. and Willoughby, J. K.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920034999},
  note = {Source identifier: 19920034999}
}