@misc{indiciae4809e25c8112,
  title = {A cross-armed reversible screen stereoscope.},
  author = {A C HUDSON},
  year = {1955},
  doi = {10.1136/bjo.39.10.634},
  url = {https://pubmed.ncbi.nlm.nih.gov/13260563/},
  note = {Source identifier: 13260563}
}