@misc{indiciae0e1362e412e9,
  title = {The 4-5 cycles per second rhythm--changes in time.},
  author = {H Heintel and E Schalt and F Vogel},
  year = {1986},
  doi = {10.1007/bf00515917},
  url = {https://pubmed.ncbi.nlm.nih.gov/3732340/},
  note = {Source identifier: 3732340}
}