@misc{indiciae1e81ecff742a,
  title = {National Space Transportation System (NSTS) technology needs},
  author = {Winterhalter, David L. and Ulrich, Kimberly K.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910007708},
  note = {Source identifier: 19910007708}
}