@misc{indiciae8207ea42647e,
  title = {Position indicating, rotating boom},
  author = {Dibble, A. C. and Gibson, F. W. and Padelt, J. R. and Saunders, W. S.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720000066},
  note = {Source identifier: 19720000066}
}