@misc{indiciaeffe8e942f2e3,
  title = {Space telescope phase B definition study. Volume 2A: Science instruments, astrometer},
  author = {A. B. Wissinger and D. J. McCarthy},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770008884},
  note = {Source identifier: 19770008884}
}