@misc{indiciae2204ebd56bc6,
  title = {[Spatial orientation capability in the elderly].},
  author = {R Winkler and E Opgenoorth and O Presslich},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6140878/},
  note = {Source identifier: 6140878}
}