@misc{indiciaea81d87aa819d,
  title = {Optical design of zero-power Hubble Space Telescope wave-front correctors for null testing},
  author = {Hannan, Paul G. and Davila, Pam and Wood, H. J.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930050640},
  note = {Source identifier: 19930050640}
}