@misc{indiciae4bcbdcf05d12,
  title = {Cardiac arrhythmias and circle maps-A classical problem.},
  author = {Leon Glass},
  year = {1991},
  doi = {10.1063/1.165810},
  url = {https://pubmed.ncbi.nlm.nih.gov/12779891/},
  note = {Source identifier: 12779891}
}