@misc{indiciae0382e87dfac6,
  title = {Optical method for measuring water flow with automatic recording.},
  author = {M Ruphi and R C de Sousa and E Favrod-Conune and J M Posternak},
  year = {1972},
  doi = {10.1007/bf01965364},
  url = {https://pubmed.ncbi.nlm.nih.gov/4638930/},
  note = {Source identifier: 4638930}
}