@misc{indiciaec871ba9710b3,
  title = {Learning and fluctuating behaviour. Experiments with goldfish.},
  author = {E G Eijkman},
  year = {1970},
  doi = {10.1016/s0022-5193(70)80016-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/5434346/},
  note = {Source identifier: 5434346}
}