@misc{indiciaed181f8ff1c7c,
  title = {Research in electrically supported vacuum gyroscope. Volume 1 - Summary Final report},
  author = {Phelps, R. K.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690009730},
  note = {Source identifier: 19690009730}
}