@misc{indiciaea265b28ad8cf,
  title = {Lithium slows down the Kalanchoe clock.},
  author = {W Engelmann},
  year = {1972},
  doi = {10.1515/znb-1972-0431},
  url = {https://pubmed.ncbi.nlm.nih.gov/4403319/},
  note = {Source identifier: 4403319}
}