@misc{indiciaee27194a701ca,
  title = {Space Telescope precision pointing control system},
  author = {Beals, G. A. and Crum, R. C. and Dougherty, H. J. and Hegel, D. K. and Kelley, J. L.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860062670},
  note = {Source identifier: 19860062670}
}