@misc{indiciaeae0fc07e9f06,
  title = {Complete Transitivity and the Ergodic Principle.},
  author = {E Hopf},
  year = {1932},
  doi = {10.1073/pnas.18.2.204},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577451/},
  note = {Source identifier: 16577451}
}