@misc{indiciae1a435d77dc9b,
  title = {Two Mean Theorems in Hilbert Space.},
  author = {K Fan},
  year = {1945},
  doi = {10.1073/pnas.31.12.417},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588714/},
  note = {Source identifier: 16588714}
}