@misc{indiciaed10a31553aea,
  title = {Passive Sun seeker/tracker and a thermally activated power module},
  author = {Siebert, C. J. and Morris, F. A.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840017021},
  note = {Source identifier: 19840017021}
}