@misc{indiciae041daf9036f1,
  title = {Two Remarks on Schrödinger's Quantum Theory.},
  author = {P S Epstein},
  year = {1927},
  doi = {10.1073/pnas.13.3.94},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587172/},
  note = {Source identifier: 16587172}
}