@misc{indiciae52c6fe980bb1,
  title = {A general bijective algorithm for trees.},
  author = {W Y Chen},
  year = {1990},
  doi = {10.1073/pnas.87.24.9635},
  url = {https://pubmed.ncbi.nlm.nih.gov/11607133/},
  note = {Source identifier: 11607133}
}