@misc{indiciae633364b170fb,
  title = {[Periscopic device for relaxation of accommodation, adapted to the (Zeiss-Jena) coincidence refractometer].},
  author = {P P Vancea and A Calin and D Gheghea},
  url = {https://pubmed.ncbi.nlm.nih.gov/138906/},
  note = {Source identifier: 138906}
}