@misc{indiciae113635808fbb,
  title = {The stereotactic operating microscope: accuracy refinement and clinical experience.},
  author = {D W Roberts and J W Strohbehn and E M Friets and J Kettenberger and A Hartov},
  year = {1989},
  doi = {10.1007/978-3-7091-9029-6\_28},
  url = {https://pubmed.ncbi.nlm.nih.gov/2672710/},
  note = {Source identifier: 2672710}
}