@misc{indiciae238a2efb0196,
  title = {Satellite attitude determination - Digital sensing and on-board processing},
  author = {Albus, J. S. and Schaefer, D. H.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19660022760},
  note = {Source identifier: 19660022760}
}