@misc{indiciaee480267737b2,
  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/19640000182},
  note = {Source identifier: 19640000182}
}