@misc{indiciaeab7a3693503a,
  title = {On Non-Factorable Transformations of Double Sequences.},
  author = {C R Adams},
  year = {1933},
  doi = {10.1073/pnas.19.5.564},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587787/},
  note = {Source identifier: 16587787}
}