@misc{indiciae1e4c7c8a081b,
  title = {[A simple device for sharpening objects imbedded in plexiglas].},
  author = {A MAAS},
  year = {1957},
  url = {https://pubmed.ncbi.nlm.nih.gov/13464462/},
  note = {Source identifier: 13464462}
}