@misc{indiciaee82e63f52304,
  title = {General Arithmetic.},
  author = {M Ward},
  year = {1927},
  doi = {10.1073/pnas.13.11.748},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587268/},
  note = {Source identifier: 16587268}
}