@misc{indiciaede9a39ae5c9a,
  title = {[Video densitometry with flexible window size using light-limiting diaphragm].},
  author = {W D Bussmann and R Zimmermann and M Schmidt and W Ameling and S Effert},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4344717/},
  note = {Source identifier: 4344717}
}