@misc{indiciae8131dcbffc42,
  title = {Solar disk sextant},
  author = {Sofia, S. and Chiu, H.-Y. and Maier, E. and Schatten, K. H. and Minott, P. and Endal, A. S.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840047150},
  note = {Source identifier: 19840047150}
}