@misc{indiciae71460973e07e,
  title = {Notes on Germanium Oxide.},
  author = {E L Nichols},
  year = {1923},
  doi = {10.1073/pnas.9.7.248},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576711/},
  note = {Source identifier: 16576711}
}