@misc{indiciaed1ce358ec6d4,
  title = {The Photicon},
  author = {Kellogg, E. and Murray, S. and Briel, U. and Bardas, D.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770067296},
  note = {Source identifier: 19770067296}
}