@misc{indiciaede8fcfa14bef,
  title = {Wave numbers and symbolic dynamics.},
  author = {EJ Ding},
  year = {1989},
  doi = {10.1103/physreva.39.816},
  url = {https://pubmed.ncbi.nlm.nih.gov/9901308/},
  note = {Source identifier: 9901308}
}