@misc{indiciaeb3ab8a0ae011,
  title = {Solar disk sextant optical configuration},
  author = {Chiu, H.-Y. and Maier, E. and Schatten, K. H. and Sofia, S.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840047149},
  note = {Source identifier: 19840047149}
}