@misc{indiciae03a3887b8b86,
  title = {Gravity and the circulation.},
  author = {P Howard},
  year = {1977},
  doi = {10.1098/rspb.1977.0156},
  url = {https://pubmed.ncbi.nlm.nih.gov/23542/},
  note = {Source identifier: 23542}
}