@misc{indiciaebfaa04a11680,
  title = {Image guided microsurgery with a semifreehand neuronavigational device.},
  author = {C Schaller and B Meyer and D van Roost and J Schramm},
  year = {1997},
  url = {https://pubmed.ncbi.nlm.nih.gov/9377717/},
  note = {Source identifier: 9377717}
}