@misc{indiciae69619ac36a2d,
  title = {The Inertial Upper Stage - A space transportation system element nearing first flight},
  author = {Rohrbaugh, D. J. and Redd, F. J. and Van Rensselaer, F.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810062886},
  note = {Source identifier: 19810062886}
}