@misc{indiciaeae75a170e548,
  title = {Some Remarks Concerning Schrödinger's Wave Equation.},
  author = {G D Birkhoff},
  year = {1933},
  doi = {10.1073/pnas.19.3.339},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577521/},
  note = {Source identifier: 16577521}
}