@misc{indiciae77dc3c865c29,
  title = {[Instruments for testing small optical details and knots].},
  author = {Iu A Tsepelev and V G Khor'kov and E A Bulanova},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5150598/},
  note = {Source identifier: 5150598}
}