@misc{indiciae93514be89e1f,
  title = {S-4B orbital workshop attitude control system study},
  author = {Bunyak, R. S. and Curtis, H. S. and Ewald, W. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19700026485},
  note = {Source identifier: 19700026485}
}