@misc{indiciae16bc34f4f489,
  title = {An improved three-dimensional display system.},
  author = {J Szilard},
  year = {1974},
  doi = {10.1016/0041-624x(74)90137-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4428521/},
  note = {Source identifier: 4428521}
}