@misc{indiciae22cc4180bf7a,
  title = {Infusing Stretch Goal Requirements into the Constellation Program},
  author = {Lee, Young H. and Galpin, Roger A. and Ingoldsby, Kevin},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20150014722},
  note = {Source identifier: 20150014722}
}