@misc{indiciae2ad4cc81e603,
  title = {NASA gateway requirements analysis},
  author = {Duncan, Denise R. and Doby, John S. and Shockley, Cynthia W.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910013622},
  note = {Source identifier: 19910013622}
}