@misc{indiciaef1e09f846d79,
  title = {Practical stereoscopic projection.},
  author = {G Sparks},
  year = {1973},
  doi = {10.1016/0002-9394(73)90901-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4706423/},
  note = {Source identifier: 4706423}
}