@misc{indiciae535a52a7dee4,
  title = {[Optical visual aids in school sports].},
  author = {F Klimt and P Teuchmann and H J Trojan},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/2942821/},
  note = {Source identifier: 2942821}
}