@misc{indiciaee25af4d775ef,
  title = {PERIODICITY IN SEQUENCES DEFINED BY LINEAR RECURRENCE RELATIONS.},
  author = {H T Engstrom},
  year = {1930},
  doi = {10.1073/pnas.16.10.663},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577288/},
  note = {Source identifier: 16577288}
}