@misc{indiciae2bd8ff15b482,
  title = {Covering dynamical systems: twofold covers.},
  author = {C Letellier and R Gilmore},
  year = {2000},
  doi = {10.1103/physreve.63.016206},
  url = {https://pubmed.ncbi.nlm.nih.gov/11304334/},
  note = {Source identifier: 11304334}
}